15. Linda ,make sure the tables ____ before the guests arrive.(A) be set (B) set (C) are set (D) are
16. I refuse to accept the blame for something _____ was someone else’s fault.(A) who (B) that (C) a
17. I’m afraid Mr.harding ____ see you now . he’s busy.(A) can’t (B) mustn’t (C) shouldn’t (D) needn
18. –Can I help you? Are you looking for anything in particular today?----_____, we’re just looking.
19. Excuse me. I I was blocking you r way.(A) didn’t realize (B) don’t realize(C) haven’t realized (
20. Mr. Black is very happy because the clothes made in his factory have never been .(A) popular (B)
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