[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a01413-a5d4-7876-82dd-624333c25cb9":3,"grammar-exercise-lesson-019b6a88-0003-7e9c-8479-e53dc8e247ce":257},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":256},"01a01413-a5d4-7876-82dd-624333c25cb9","\u002Fapi\u002Fgrammar_pages\u002F019b6a88-0003-7e9c-8479-e53dc8e247ce","Present Perfect - Find and Fix the Mistake","One word in each sentence is wrong. Tap it, then choose the correction.",5,"find_and_fix",[12,38,58,79,99,121,140,161,178,198,214,236],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18,"payload":19},"01a01413-a5d4-79b6-82dd-624333e98d1d","Mia have finished her homework, so she can play now.",0,"Use 'has finished' with the singular subject 'Mia'.","Mia has finished her homework, so she can play now.",[],{"hint":20,"words":21,"correct":32,"wrongIndex":33,"corrections":34},"Mia is one person, and the result matters now.",[22,23,24,25,26,27,28,29,30,31],"Mia","have","finished","her","homework,","so","she","can","play","now.","has",1,[32,35,36,37],"having","did","is",{"id":39,"sentenceTemplate":40,"displayOrder":33,"explanation":41,"exampleSentence":42,"blanks":43,"payload":44},"01a01413-a5d4-7a12-82dd-624334671b37","Has you ever visited a castle?","Use 'Have you ever visited ...?' to ask about a life experience.","Have you ever visited a castle?",[],{"hint":45,"words":46,"correct":53,"wrongIndex":15,"corrections":54},"Use the present-perfect question form with you.",[47,48,49,50,51,52],"Has","you","ever","visited","a","castle?","Have",[53,55,56,57],"Did","Are","Do",{"id":59,"sentenceTemplate":60,"displayOrder":61,"explanation":62,"exampleSentence":63,"blanks":64,"payload":65},"01a01413-a5d4-7a52-82dd-624334a94e25","Lena haven't eaten lunch yet, so she is hungry.",2,"Use 'hasn't eaten yet' with the singular subject 'Lena'.","Lena hasn't eaten lunch yet, so she is hungry.",[],{"hint":66,"words":67,"correct":74,"wrongIndex":33,"corrections":75},"Lena is singular, and yet connects the past to now.",[68,69,70,71,72,27,28,37,73],"Lena","haven't","eaten","lunch","yet,","hungry.","hasn't",[74,76,77,78],"didn't","doesn't","wasn't",{"id":80,"sentenceTemplate":81,"displayOrder":82,"explanation":83,"exampleSentence":84,"blanks":85,"payload":86},"01a01413-a5d4-7a8a-82dd-62433552211b","Have you finished the form? Yes, I did.",3,"A question beginning 'Have you ...?' takes the short answer 'Yes, I have.'","Have you finished the form? Yes, I have.",[],{"hint":87,"words":88,"correct":94,"wrongIndex":95,"corrections":96},"Match the helping verb in the question.",[53,48,24,89,90,91,92,93],"the","form?","Yes,","I","did.","have.",7,[94,97,98],"has.","do.",{"id":100,"sentenceTemplate":101,"displayOrder":102,"explanation":103,"exampleSentence":104,"blanks":105,"payload":106},"01a01413-a5d4-7aba-82dd-624335d04a6f","Sam isn't at the office; he has went home.",4,"Use 'has gone home' because Sam left the office and is absent now.","Sam isn't at the office; he has gone home.",[],{"hint":107,"words":108,"correct":116,"wrongIndex":95,"corrections":117},"After 'has', use the past participle of go.",[109,110,111,89,112,113,32,114,115],"Sam","isn't","at","office;","he","went","home.","gone",[116,118,119,120],"go","going","goes",{"id":122,"sentenceTemplate":123,"displayOrder":9,"explanation":124,"exampleSentence":125,"blanks":126,"payload":127},"01a01413-a5d4-7aee-82dd-62433672bc18","We have ate all the pizza; the box is empty.","Use the irregular past participle 'eaten' after 'have'.","We have eaten all the pizza; the box is empty.",[],{"hint":128,"words":129,"correct":70,"wrongIndex":61,"corrections":136},"After 'have', use the past participle of eat.",[130,23,131,132,89,133,89,134,37,135],"We","ate","all","pizza;","box","empty.",[70,137,138,139],"eating","eat","eats",{"id":141,"sentenceTemplate":142,"displayOrder":143,"explanation":144,"exampleSentence":145,"blanks":146,"payload":147},"01a01413-a5d4-7b22-82dd-62433724b7fe","Mia left for Rome and is still there; she has went there this week.",6,"Use the past participle 'gone' after 'has'. It also fits the context because Mia went to Rome and has not returned.","Mia left for Rome and is still there; she has gone there this week.",[],{"hint":148,"words":149,"correct":116,"wrongIndex":159,"corrections":160},"Mia is still in Rome, not back home.",[22,150,151,152,153,37,154,155,28,32,114,156,157,158],"left","for","Rome","and","still","there;","there","this","week.",10,[116,118,119],{"id":162,"sentenceTemplate":163,"displayOrder":95,"explanation":164,"exampleSentence":165,"blanks":166,"payload":167},"01a01413-a5d4-7b52-82dd-624337684233","Leo is home again; he has go to Paris twice.","Use 'has been to Paris' for completed visits when the person has returned.","Leo is home again; he has been to Paris twice.",[],{"hint":168,"words":169,"correct":176,"wrongIndex":143,"corrections":177},"Leo visited Paris and returned home.",[170,37,171,172,113,32,118,173,174,175],"Leo","home","again;","to","Paris","twice.","been",[176,116,114,119],{"id":179,"sentenceTemplate":180,"displayOrder":181,"explanation":182,"exampleSentence":183,"blanks":184,"payload":185},"01a01413-a5d4-7b82-82dd-6243385822d3","Sara has lived here since two years.",8,"Use 'for' before a duration such as 'two years'.","Sara has lived here for two years.",[],{"hint":186,"words":187,"correct":151,"wrongIndex":102,"corrections":194},"Two years is a length of time.",[188,32,189,190,191,192,193],"Sara","lived","here","since","two","years.",[151,195,196,197],"during","until","from",{"id":199,"sentenceTemplate":200,"displayOrder":201,"explanation":202,"exampleSentence":203,"blanks":204,"payload":205},"01a01413-a5d4-7bb6-82dd-624339232dd8","I still have this job; I have worked here for 2021.",9,"Use 'since' before the point when a continuing situation started.","I still have this job; I have worked here since 2021.",[],{"hint":206,"words":207,"correct":191,"wrongIndex":201,"corrections":211},"The year is the starting point.",[92,154,23,157,208,92,23,209,190,151,210],"job;","worked","2021.",[191,212,213,111],"ago","by",{"id":215,"sentenceTemplate":216,"displayOrder":159,"explanation":217,"exampleSentence":218,"blanks":219,"payload":220},"01a01413-a5d4-7be6-82dd-624339a507a5","It is noon on Tuesday, and I have answered three emails tomorrow.","Use the present perfect with 'today' when today is still continuing.","It is noon on Tuesday, and I have answered three emails today.",[],{"hint":221,"words":222,"correct":231,"wrongIndex":232,"corrections":233},"Tuesday is still continuing at noon.",[223,37,224,225,226,153,92,23,227,228,229,230],"It","noon","on","Tuesday,","answered","three","emails","tomorrow.","today.",11,[231,234,235],"yesterday.","Monday.",{"id":237,"sentenceTemplate":238,"displayOrder":232,"explanation":239,"exampleSentence":240,"blanks":241,"payload":242},"01a01413-a5d4-7c16-82dd-62433a6aba20","The homework is on the desk; Noor has complete it already.","Use the past participle 'completed' after 'has'. 'Already' can also go at the end of this positive sentence.","The homework is on the desk; Noor has completed it already.",[],{"hint":243,"words":244,"correct":252,"wrongIndex":181,"corrections":253},"The homework is complete before now.",[245,246,37,225,89,247,248,32,249,250,251],"The","homework","desk;","Noor","complete","it","already.","completed",[252,254,255],"completing","completes","\u002Fuploads\u002Fimages\u002Fgpimg_69ef5d37-8eda-4c98-b108-6db7032ace01_hero.webp",{"title":258,"slug":259,"language":260,"level":261},"Present Perfect","present-perfect","en","A2"]