[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a01413-a135-7596-8edb-ff3450fa6b76":3,"grammar-exercise-lesson-019b7f36-64bf-7f2e-84e0-6a817ed790ee":269},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":268},"01a01413-a135-7596-8edb-ff3450fa6b76","\u002Fapi\u002Fgrammar_pages\u002F019b7f36-64bf-7f2e-84e0-6a817ed790ee","Past-Time Choices - Find and Fix","One word in each sentence is wrong. Tap it, then choose the correction.",4,"find_and_fix",[12,39,68,87,106,128,151,169,190,207,227,249],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18,"payload":19},"01a01413-a135-76a6-8edb-ff3451e1c7cd","First, the curator unlocked the case; because she removed the note; finally, she photographed it.",0,"The sequencing words mark three completed events in order, so 'then' introduces the second event. The other connectors would leave the middle clause incomplete in this frame.","First, the curator unlocked the case; then she removed the note; finally, she photographed it.",[],{"words":20,"correct":33,"wrongIndex":34,"corrections":35},[21,22,23,24,22,25,26,27,28,22,29,30,27,31,32],"First,","the","curator","unlocked","case;","because","she","removed","note;","finally,","photographed","it.","then",6,[33,36,37,38],"although","while","before",{"id":40,"sentenceTemplate":41,"displayOrder":42,"explanation":43,"exampleSentence":44,"blanks":45,"payload":46},"01a01413-a135-76f6-8edb-ff34522a35b5","While six musicians was playing live in the rehearsal room, I heard a glass break.",1,"The plural subject 'six musicians' requires 'were playing' for the longer background action. 'Are' and 'is' conflict with the past event, while 'had playing' is malformed.","While six musicians were playing live in the rehearsal room, I heard a glass break.",[],{"words":47,"correct":62,"wrongIndex":63,"corrections":64},[48,49,50,51,52,53,54,22,55,56,57,58,59,60,61],"While","six","musicians","was","playing","live","in","rehearsal","room,","I","heard","a","glass","break.","were",3,[62,65,66,67],"are","had","is",{"id":69,"sentenceTemplate":70,"displayOrder":71,"explanation":72,"exampleSentence":73,"blanks":74,"payload":75},"01a01413-a135-7732-8edb-ff34525e0ef6","While I was checking the receipts, a customer suddenly complains.",2,"Use past simple 'complained' for the sudden completed event that happened during the background action.","While I was checking the receipts, a customer suddenly complained.",[],{"words":76,"correct":82,"wrongIndex":83,"corrections":84},[48,57,51,77,22,78,59,79,80,81],"checking","receipts,","customer","suddenly","complains.","complained.",9,[82,85,86],"complain.","complaining.",{"id":88,"sentenceTemplate":89,"displayOrder":63,"explanation":90,"exampleSentence":91,"blanks":92,"payload":93},"01a01413-a135-7766-8edb-ff3452e31e9e","In 2018, Mara runs a community radio station.","Use the irregular past simple 'ran' because 'in 2018' is a finished time.","In 2018, Mara ran a community radio station.",[],{"words":94,"correct":102,"wrongIndex":63,"corrections":103},[95,96,97,98,59,99,100,101],"In","2018,","Mara","runs","community","radio","station.","ran",[102,104,105],"run","running",{"id":107,"sentenceTemplate":108,"displayOrder":9,"explanation":109,"exampleSentence":110,"blanks":111,"payload":112},"01a01413-a135-779a-8edb-ff3453008851","So far, I had visited Iceland twice, and I hope to return.","'So far' connects the experience to the present, so use present perfect 'have visited', not past perfect 'had visited'.","So far, I have visited Iceland twice, and I hope to return.",[],{"words":113,"correct":123,"wrongIndex":63,"corrections":124},[114,115,57,66,116,117,118,119,57,120,121,122],"So","far,","visited","Iceland","twice,","and","hope","to","return.","have",[123,125,126,127],"has","am","did",{"id":129,"sentenceTemplate":130,"displayOrder":131,"explanation":132,"exampleSentence":133,"blanks":134,"payload":135},"01a01413-a135-77de-8edb-ff3453594751","I left the timetable unread, so I didn't checked it and missed the last bus.",5,"After past-simple 'didn't', use the base verb 'check'. The unread timetable caused the completed result 'missed'.","I left the timetable unread, so I didn't check it and missed the last bus.",[],{"words":136,"correct":147,"wrongIndex":148,"corrections":149},[57,137,22,138,139,140,57,141,142,143,119,144,22,145,146],"left","timetable","unread,","so","didn't","checked","it","missed","last","bus.","check",8,[147,77,150],"checks",{"id":152,"sentenceTemplate":153,"displayOrder":34,"explanation":154,"exampleSentence":155,"blanks":156,"payload":157},"01a01413-a135-780e-8edb-ff3453d5dc56","I seen that film at the festival last Saturday.","'Seen' is a past participle and normally needs 'have'. With the finished time 'last Saturday', use the irregular past simple 'saw'.","I saw that film at the festival last Saturday.",[],{"words":158,"correct":165,"wrongIndex":42,"corrections":166},[57,159,160,161,162,22,163,145,164],"seen","that","film","at","festival","Saturday.","saw",[165,167,168],"sees","seeing",{"id":170,"sentenceTemplate":171,"displayOrder":172,"explanation":173,"exampleSentence":174,"blanks":175,"payload":176},"01a01413-a135-783a-8edb-ff34548fdeb2","Lina use to own the studio, but she sold it years ago.",7,"Use 'used to own' for a past state that is no longer true; selling the studio years ago makes that contrast explicit.","Lina used to own the studio, but she sold it years ago.",[],{"words":177,"correct":186,"wrongIndex":42,"corrections":187},[178,179,121,180,22,181,182,27,183,143,184,185],"Lina","use","own","studio,","but","sold","years","ago.","used",[186,188,189],"uses","using",{"id":191,"sentenceTemplate":192,"displayOrder":148,"explanation":193,"exampleSentence":194,"blanks":195,"payload":196},"01a01413-a135-786a-8edb-ff34552d4a7c","The engineer were already inspecting the cable when the alarm rang.","The singular subject 'the engineer' requires 'was inspecting' for the background action in progress when the alarm rang. The other auxiliaries do not form the required past continuous.","The engineer was already inspecting the cable when the alarm rang.",[],{"words":197,"correct":51,"wrongIndex":71,"corrections":206},[198,199,62,200,201,22,202,203,22,204,205],"The","engineer","already","inspecting","cable","when","alarm","rang.",[51,67,66,125],{"id":208,"sentenceTemplate":209,"displayOrder":83,"explanation":210,"exampleSentence":211,"blanks":212,"payload":213},"01a01413-a135-789a-8edb-ff3455ca7e00","Did the guide explained why the gallery closed early yesterday?","After past auxiliary 'did', use the base verb 'explain'.","Did the guide explain why the gallery closed early yesterday?",[],{"words":214,"correct":223,"wrongIndex":63,"corrections":224},[215,22,216,217,218,22,219,220,221,222],"Did","guide","explained","why","gallery","closed","early","yesterday?","explain",[223,225,226],"explains","explaining",{"id":228,"sentenceTemplate":229,"displayOrder":230,"explanation":231,"exampleSentence":232,"blanks":233,"payload":234},"01a01413-a135-78c6-8edb-ff345627fdd4","At noon yesterday, the committee chooses the final design and ended the meeting.",10,"Use the irregular past simple 'chose' to match the finished time and the following completed event 'ended'.","At noon yesterday, the committee chose the final design and ended the meeting.",[],{"words":235,"correct":245,"wrongIndex":131,"corrections":246},[236,237,238,22,239,240,22,241,242,119,243,22,244],"At","noon","yesterday,","committee","chooses","final","design","ended","meeting.","chose",[245,247,248],"chosen","choosing",{"id":250,"sentenceTemplate":251,"displayOrder":252,"explanation":253,"exampleSentence":254,"blanks":255,"payload":256},"01a01413-a135-78f2-8edb-ff34563b827e","By the time the inspectors arrived, the crew will locked the doors and left.",11,"Use past perfect 'had locked ... and left' for the two completed actions that happened before the inspectors arrived.","By the time the inspectors arrived, the crew had locked the doors and left.",[],{"words":257,"correct":66,"wrongIndex":148,"corrections":267},[258,22,259,22,260,261,22,262,263,264,22,265,119,266],"By","time","inspectors","arrived,","crew","will","locked","doors","left.",[66,125,123,51],"\u002Fuploads\u002Fimages\u002Fgpimg_9fde4638-7cb9-47c2-9d14-af34fc6a4afc_hero.webp",{"title":270,"slug":271,"language":272,"level":273},"Past Simple (B1)","past-simple-b1","en","B1"]