[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"grammar-exercise-01a01413-90e7-7178-8d1d-325f707c6932":3,"grammar-exercise-lesson-019df7d6-428b-7ed3-a268-ff3a1cd04d2e":195},["Reactive",4],{"id":5,"grammarPage":6,"title":7,"instructions":8,"displayOrder":9,"type":10,"questions":11,"ogImageUrl":194},"01a01413-90e7-7178-8d1d-325f707c6932","\u002Fapi\u002Fgrammar_pages\u002F019df7d6-428b-7ed3-a268-ff3a1cd04d2e","Articles – Find and Fix the Mistake","One word in each sentence is wrong. Tap it, then choose the correction.",5,"find_and_fix",[12,35,53,71,87,104,119,136,157,176],{"id":13,"sentenceTemplate":14,"displayOrder":15,"explanation":16,"exampleSentence":17,"blanks":18,"payload":19},"01a01413-90e7-72a4-8d1d-325f717018c8","What a honour it was to meet the author!",0,"Use 'an' in the expression 'an honour' because the h is silent and the noun begins with a vowel sound.","What an honour it was to meet the author!",[],{"hint":20,"words":21,"correct":31,"wrongIndex":32,"corrections":33},"Check how the indefinite article is chosen.",[22,23,24,25,26,27,28,29,30],"What","a","honour","it","was","to","meet","the","author!","an",1,[31,29,34],"some",{"id":36,"sentenceTemplate":37,"displayOrder":32,"explanation":38,"exampleSentence":39,"blanks":40,"payload":41},"01a01413-90e7-7300-8d1d-325f7229b144","Marta was a only customer in the shop.","Use 'the' before 'only' because the description identifies one unique customer.","Marta was the only customer in the shop.",[],{"hint":42,"words":43,"correct":29,"wrongIndex":49,"corrections":50},"Is the customer unique or one of many?",[44,26,23,45,46,47,29,48],"Marta","only","customer","in","shop.",2,[29,51,52],"any","each",{"id":54,"sentenceTemplate":55,"displayOrder":49,"explanation":56,"exampleSentence":57,"blanks":58,"payload":59},"01a01413-90e7-7338-8d1d-325f722c27dc","Her brother studies at a University of Oxford.","A university name with an 'of' phrase takes 'the': 'the University of Oxford'.","Her brother studies at the University of Oxford.",[],{"hint":60,"words":61,"correct":29,"wrongIndex":69,"corrections":70},"Check the pattern in a university name with 'of'.",[62,63,64,65,23,66,67,68],"Her","brother","studies","at","University","of","Oxford.",4,[29,31],{"id":72,"sentenceTemplate":73,"displayOrder":74,"explanation":75,"exampleSentence":76,"blanks":77,"payload":78},"01a01413-90e7-7370-8d1d-325f72d261e4","What an one-sided final that was!",3,"In this exclamation, use 'a' before 'one-sided' because the word begins with the consonant sound \u002Fw\u002F.","What a one-sided final that was!",[],{"hint":79,"words":80,"correct":23,"wrongIndex":32,"corrections":85},"Choose the article by sound, not spelling.",[22,31,81,82,83,84],"one-sided","final","that","was!",[23,29,86],"one",{"id":88,"sentenceTemplate":89,"displayOrder":69,"explanation":90,"exampleSentence":91,"blanks":92,"payload":93},"01a01413-90e7-73a0-8d1d-325f73c2a503","Of all our meals, dinner was a best.","Use 'the' with the superlative 'best'; the phrase 'of all our meals' makes the comparison explicit.","Of all our meals, dinner was the best.",[],{"hint":94,"words":95,"correct":29,"wrongIndex":102,"corrections":103},"Check how a superlative is introduced.",[96,97,98,99,100,26,23,101],"Of","all","our","meals,","dinner","best.",6,[29,31,86],{"id":105,"sentenceTemplate":106,"displayOrder":9,"explanation":107,"exampleSentence":108,"blanks":109,"payload":110},"01a01413-90e7-73d4-8d1d-325f74afe94a","Ravi became a international student at sixteen.","Use 'an' before 'international' because it begins with a vowel sound.","Ravi became an international student at sixteen.",[],{"hint":111,"words":112,"correct":31,"wrongIndex":49,"corrections":118},"Check the first sound after the article.",[113,114,23,115,116,65,117],"Ravi","became","international","student","sixteen.",[31,51,52],{"id":120,"sentenceTemplate":121,"displayOrder":102,"explanation":122,"exampleSentence":123,"blanks":124,"payload":125},"01a01413-90e7-7404-8d1d-325f75432843","Our class will visit a Netherlands next spring.","The conventional country name is 'the Netherlands'; most single-word country names instead take no article.","Our class will visit the Netherlands next spring.",[],{"hint":126,"words":127,"correct":29,"wrongIndex":69,"corrections":135},"This country name follows a special article pattern.",[128,129,130,131,23,132,133,134],"Our","class","will","visit","Netherlands","next","spring.",[29,31,86],{"id":137,"sentenceTemplate":138,"displayOrder":139,"explanation":140,"exampleSentence":141,"blanks":142,"payload":143},"01a01413-90e7-7434-8d1d-325f76159364","Nora found such an convenient bus service near her home.",7,"Use 'a' after 'such' because 'convenient' begins with a consonant sound.","Nora found such a convenient bus service near her home.",[],{"hint":144,"words":145,"correct":23,"wrongIndex":74,"corrections":155},"Check the complete pattern before the noun.",[146,147,148,31,149,150,151,152,153,154],"Nora","found","such","convenient","bus","service","near","her","home.",[23,29,156],"so",{"id":158,"sentenceTemplate":159,"displayOrder":160,"explanation":161,"exampleSentence":162,"blanks":163,"payload":164},"01a01413-90e7-7464-8d1d-325f766eeaae","The team says Friday will be a first day of the conference.",8,"Use 'the' with the ordinal 'first' because the conference has one day in position number one.","The team says Friday will be the first day of the conference.",[],{"hint":165,"words":166,"correct":29,"wrongIndex":102,"corrections":175},"Check how one item in a numbered sequence is identified.",[167,168,169,170,130,171,23,172,173,67,29,174],"The","team","says","Friday","be","first","day","conference.",[29,31,86],{"id":177,"sentenceTemplate":178,"displayOrder":179,"explanation":180,"exampleSentence":181,"blanks":182,"payload":183},"01a01413-90e7-7494-8d1d-325f77618593","In our city, a poor need more affordable housing.",9,"Use 'the + adjective' to refer to a group of people: 'the poor'. The group takes the plural verb 'need'.","In our city, the poor need more affordable housing.",[],{"hint":184,"words":185,"correct":29,"wrongIndex":74,"corrections":193},"Check the article used before an adjective that names a group.",[186,98,187,23,188,189,190,191,192],"In","city,","poor","need","more","affordable","housing.",[29,31,52],"\u002Fuploads\u002Fimages\u002Fgpimg_f3c08b48-3264-496a-8081-6c26cc1d3d2b_hero.webp",{"title":196,"slug":197,"language":198,"level":199},"Articles","articles","en","B1"]