[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"external-grammar-539":3},{"payload":4,"id":86,"user":87,"level":93,"course":94,"activity":94,"activity_slug":95,"title":96,"topic":97,"tone":98,"stats":99,"created":102,"score":103,"is_favorite":104,"public":105,"is_external":104},{"assessments":5},[6,14,22,30,38,46,54,62,70,78],{"text":7,"topic":8,"choices":9},"I can't access the shared folder because someone .......... (to change) the permissions.","Present Perfect",[10,11,12,13],"changed","has changed","had changed","is changing",{"text":15,"topic":16,"choices":17},"I .......... (to drive) home when I realised I’d left my laptop at the office.","Past Continuous",[18,19,20,21],"have been driving","had driven","was driving","drove",{"text":23,"topic":24,"choices":25},"If you .......... (to back up) your files regularly, you .......... (not / to lose) everything after the crash.","Conditionals",[26,27,28,29],"would back up / wouldn't have lost","back up / won't lose","had backed up / wouldn't have lost","backed up / wouldn't lose",{"text":31,"topic":32,"choices":33},"All candidates .......... (to inform) of the final decision by email within 48 hours.","Passive Voice",[34,35,36,37],"will be informed","have been informed","are informed","will inform",{"text":39,"topic":40,"choices":41},"You .......... submit the form today; otherwise, your application won’t be processed.","Modal Verbs",[42,43,44,45],"must","might","could","would",{"text":47,"topic":48,"choices":49},"The colleague .......... report you’re reading joined the company last month.","Relative Clauses",[50,51,52,53],"whom","who","which","whose",{"text":55,"topic":56,"choices":57},"She has .......... MBA, so she’s used to presenting complex ideas clearly.","Articles",[58,59,60,61],"the","-","a","an",{"text":63,"topic":64,"choices":65},"We need to .......... the meeting until next week because the client is ill.","Phrasal Verbs",[66,67,68,69],"put off","put out","put on","put up",{"text":71,"topic":72,"choices":73},"Direct speech: \"I can’t attend the workshop tomorrow,\" Mia said. Reported speech: Mia said that she .......... attend the workshop the next day.","Reported Speech",[74,75,76,77],"hadn't","wouldn't","can't","couldn't",{"text":79,"topic":80,"choices":81},"Choose the correct sentence.","Word Order",[82,83,84,85],"Never I have seen such a convincing argument.","I have never seen such a convincing argument.","I never have seen such a convincing argument.","I have seen never such a convincing argument.",539,{"id":88,"username":89,"first_name":90,"last_name":91,"image":92},22857,"vozian-377213","Vozian","Victoria","https://api.useofenglish.ai/static/img/users/default-profile-picture.jpg","B2","Grammar","grammar","Mixed Exercise","Create a mixed exercise for grammar in use practice","Standard",{"times_played":100,"num_favorites":101},3,1,"2026-05-02T15:36:22",null,false,true]