Mary tried _______ to persuade her husband to give up smoking.A、in lineB、in vai

游客2023-09-07  17

问题 Mary tried _______ to persuade her husband to give up smoking.

选项 A、in line
B、in vain
C、at length
D、without fail

答案 B

解析 介词短语辨析。A.in line排成一行,排队;B.in vain徒劳地,无益地;C.at length最后,终于; D.without fail必定,无疑。根据句意应选B。句意为:玛丽虽然极力劝说她的丈夫戒烟,但是徒劳无效。
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