Unit4 Big businesses单元测试
一. 单项选择 (共20小题;每题1分,共20分)
21.After thinking about the problem carefully, she came to _______ conclusion at last.
A. a B. / C. the D. one
22. There was a half smile on his face which suggested that he ________ happy to have given his life to his country.
A. was B. should be C. would be D. were
23. Have you ever had a case _________ all your family don’t trust you?
A. that B. which C. where D. as
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