The hotel rooms ____ before the guests arrived., A) had cleaned, B) were cleaned, C) had been cleaned, Mobile phones ____ in this factory., A) are produced, B) produce, C) are producing, The problem ____ while the engineer was explaining it., A) was solved, B) has being solved, Students should ____ about the schedule change., A) inform, B) informed, C) be informed, He hopes ____ for the job., A) to be chosen, B) being chosen, C) choose, The old railway station used ____ by local trains., A) use, B) to be used, C) be using, A new vaccine is going to ____ next year., A) develop, B) be developed, C) developed, The invitations ____ yet., A) haven't been printed, B) weren't printed, C) haven't printed, How often ____ this software ____?, A) does / update, B) is / updated, C) has / updated, She dislikes ____ in public., A) criticize, B) being criticized, C) to criticize, By 6 p.m., all the tables ____ for the event., A) had been prepared, B) were prepared, C) has been prepared, The library ____ on Sundays., A) doesn't open, B) isn't opened, C) hasn't opened, ____ the documents ____ last week?, A) Have / signed, B) Were / signed, C) Did / sign, This password mustn't ____ with anyone., A) share, B) be shared, C) shared, The lights ____ when the concert began., A) were being turned off, B) have been turned off, C) to turn off

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