问题
. His efforts to persuade him to make adonation were ____ because he showed no intention to take a cent out of hispocket.
A:was it
B:in sight
C:in vain
D:in effect
B:in sight
C:in vain
D:in effect
正确答案是：
同类题型
It is important for us to employ a word orphrase according to the ________ in language studies.
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Her answer is not the same as yours.
The book is useless. You’d better it.
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