[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a01413-949f-7d4a-9511-d4e489c5f07b":3,"grammar-exercise-lesson-019ba7d2-7094-7519-b0f1-7b9c0b8d1a84":271},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":270},"01a01413-949f-7d4a-9511-d4e489c5f07b","\u002Fapi\u002Fgrammar_pages\u002F019ba7d2-7094-7519-b0f1-7b9c0b8d1a84","Modal Deductions - Find and Fix","Each sentence contains one incorrect word. Tap it, then choose the correction that makes the deduction or speculation accurate.",4,"find_and_fix",[12,36,56,83,106,121,145,165,190,207,227,251],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18,"payload":19},"01a01413-949f-7f42-9511-d4e48aa5c7db","Every answer matches the evidence, so this must being correct.",0,"A present deduction with 'must' uses the base verb, so 'must be correct' is the required form.","Every answer matches the evidence, so this must be correct.",[],{"words":20,"correct":31,"wrongIndex":32,"corrections":33},[21,22,23,24,25,26,27,28,29,30],"Every","answer","matches","the","evidence,","so","this","must","being","correct.","be",8,[31,34,35],"been","have",{"id":37,"sentenceTemplate":38,"displayOrder":39,"explanation":40,"exampleSentence":41,"blanks":42,"payload":43},"01a01413-94a0-7038-8392-342a7cba72fe","The guest room is empty, so our visitors might been downstairs.",1,"A possible present location takes 'might + base verb', so 'might be downstairs' expresses an uncertain conclusion.","The guest room is empty, so our visitors might be downstairs.",[],{"words":44,"correct":31,"wrongIndex":54,"corrections":55},[45,46,47,48,49,26,50,51,52,34,53],"The","guest","room","is","empty,","our","visitors","might","downstairs.",9,[31,35,29],{"id":57,"sentenceTemplate":58,"displayOrder":59,"explanation":60,"exampleSentence":61,"blanks":62,"payload":63},"01a01413-94a0-709c-8392-342a7d095288","She is speaking to us on live video from Madrid, so she mustn't be in Oslo now.",2,"For a negative deduction, use 'can't', not 'mustn't', which normally expresses prohibition. The live video makes the Oslo conclusion impossible.","She is speaking to us on live video from Madrid, so she can't be in Oslo now.",[],{"words":64,"correct":79,"wrongIndex":80,"corrections":81},[65,48,66,67,68,69,70,71,72,73,26,74,75,31,76,77,78],"She","speaking","to","us","on","live","video","from","Madrid,","she","mustn't","in","Oslo","now.","can't",12,[79,28,82],"may",{"id":84,"sentenceTemplate":85,"displayOrder":86,"explanation":87,"exampleSentence":88,"blanks":89,"payload":90},"01a01413-94a0-70ec-8392-342a7d86d8c0","The location marker keeps moving along the motorway, so Arun may be drive toward the airport.",3,"An uncertain deduction about an action in progress uses 'may be + verb-ing', so 'may be driving' is correct.","The location marker keeps moving along the motorway, so Arun may be driving toward the airport.",[],{"words":91,"correct":102,"wrongIndex":80,"corrections":103},[45,92,93,94,95,96,24,97,26,98,82,31,99,100,24,101],"location","marker","keeps","moving","along","motorway,","Arun","drive","toward","airport.","driving",[102,104,105],"drives","drove",{"id":107,"sentenceTemplate":108,"displayOrder":9,"explanation":109,"exampleSentence":110,"blanks":111,"payload":112},"01a01413-94a0-7134-8392-342a7da59eae","Could the figure beside the gate is our guide?","In a deduction question, 'could' comes first and is followed by the base verb: 'Could the figure be our guide?'","Could the figure beside the gate be our guide?",[],{"words":113,"correct":31,"wrongIndex":119,"corrections":120},[114,24,115,116,24,117,48,50,118],"Could","figure","beside","gate","guide?",6,[31,34,29],{"id":122,"sentenceTemplate":123,"displayOrder":124,"explanation":125,"exampleSentence":126,"blanks":127,"payload":128},"01a01413-94a0-7180-8392-342a7deb5805","Her wet umbrella and coat are by the door, so Elena must has returned recently.",5,"A strong deduction about a completed past action uses 'must have + past participle', so 'must have returned' is correct.","Her wet umbrella and coat are by the door, so Elena must have returned recently.",[],{"words":129,"correct":35,"wrongIndex":80,"corrections":142},[130,131,132,133,134,135,136,24,137,26,138,28,139,140,141],"Her","wet","umbrella","and","coat","are","by","door,","Elena","has","returned","recently.",[35,143,144],"had","having",{"id":146,"sentenceTemplate":147,"displayOrder":119,"explanation":148,"exampleSentence":149,"blanks":150,"payload":151},"01a01413-94a0-71cc-8392-342a7e250545","The side gate was open, so the fox might have came through the garden.","After 'might have', use the past participle. The past participle of 'come' is 'come', giving an uncertain explanation for the open gate.","The side gate was open, so the fox might have come through the garden.",[],{"words":152,"correct":160,"wrongIndex":161,"corrections":162},[45,153,117,154,155,26,24,156,52,35,157,158,24,159],"side","was","open,","fox","came","through","garden.","come",10,[160,163,164],"comes","coming",{"id":166,"sentenceTemplate":167,"displayOrder":168,"explanation":169,"exampleSentence":170,"blanks":171,"payload":172},"01a01413-94a0-7214-8392-342a7e86c052","The file requires her account and it was disabled before upload, so Imani can't have submit the file.",7,"A deduction that a past action was impossible uses 'can't have + past participle', so 'can't have submitted' is the required form.","The file requires her account and it was disabled before upload, so Imani can't have submitted the file.",[],{"words":173,"correct":185,"wrongIndex":186,"corrections":187},[45,174,175,176,177,133,178,154,179,180,181,26,182,79,35,183,24,184],"file","requires","her","account","it","disabled","before","upload,","Imani","submit","file.","submitted",15,[185,188,189],"submits","submitting",{"id":191,"sentenceTemplate":192,"displayOrder":32,"explanation":193,"exampleSentence":194,"blanks":195,"payload":196},"01a01413-94a0-725c-8392-342a7f5167d1","Fresh sawdust covers the workshop floor, so they must have be cutting wood.","Evidence of an earlier activity takes 'modal + have been + verb-ing', so the correct phrase is 'must have been cutting'.","Fresh sawdust covers the workshop floor, so they must have been cutting wood.",[],{"words":197,"correct":34,"wrongIndex":161,"corrections":206},[198,199,200,24,201,202,26,203,28,35,31,204,205],"Fresh","sawdust","covers","workshop","floor,","they","cutting","wood.",[34,29,143],{"id":208,"sentenceTemplate":209,"displayOrder":54,"explanation":210,"exampleSentence":211,"blanks":212,"payload":213},"01a01413-94a0-72a8-8392-342a7f7a0157","According to the harbour board, the ferry should arrives at noon.","An expected result based on a timetable uses 'should + base verb', so the ferry 'should arrive' at noon.","According to the harbour board, the ferry should arrive at noon.",[],{"words":214,"correct":223,"wrongIndex":32,"corrections":224},[215,67,24,216,217,24,218,219,220,221,222],"According","harbour","board,","ferry","should","arrives","at","noon.","arrive",[223,225,226],"arrived","arriving",{"id":228,"sentenceTemplate":229,"displayOrder":161,"explanation":230,"exampleSentence":231,"blanks":232,"payload":233},"01a01413-94a0-72f0-8392-342a8052f632","Bank policy says refunds take five days, so today's refund shouldn't have reach her account yet.","Here 'shouldn't have + past participle' expresses an expected result, not criticism, so 'shouldn't have reached' is correct.","Bank policy says refunds take five days, so today's refund shouldn't have reached her account yet.",[],{"words":234,"correct":247,"wrongIndex":80,"corrections":248},[235,236,237,238,239,240,241,26,242,243,244,35,245,176,177,246],"Bank","policy","says","refunds","take","five","days,","today's","refund","shouldn't","reach","yet.","reached",[247,249,250],"reaches","reaching",{"id":252,"sentenceTemplate":253,"displayOrder":254,"explanation":255,"exampleSentence":256,"blanks":257,"payload":258},"01a01413-94a0-7334-8392-342a8103136f","Omar always calls at this exact time, so that will is him on the phone.",11,"'Will' can express a confident present assumption and takes the base verb, so 'that will be him' is the correct form.","Omar always calls at this exact time, so that will be him on the phone.",[],{"words":259,"correct":31,"wrongIndex":161,"corrections":269},[260,261,262,221,27,263,264,26,265,266,48,267,69,24,268],"Omar","always","calls","exact","time,","that","will","him","phone.",[31,34,29],"\u002Fuploads\u002Fimages\u002Fgpimg_cd4ba8cc-b3cd-414d-bcb3-4f5c0218b3f3_hero.webp",{"title":272,"slug":273,"language":274,"level":275},"Deduction & Speculation (Modals)","deduction-speculation-modals","en","B2"]