Our neighbor Uncle Johnson is a stubborn man. Needless to say, we tried ______ to make him change his mind.
A、
in short
B、
in secret
C、
in vain
D、
in danger
【正确答案】
C
【答案解析】
四个选项的词义是：“in short”指“简而言之”；“in secret”指“秘密地”；“in vain”指“徒然”；“in danger”指“在危险中”。
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