He tried and tried but all his efforts were ______.A.in no wayB.on the contraryC.at a loss
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He tried and tried but all his efforts were ______.
A.in no way
B.on the contrary
C.at a loss
D.of no avail
请帮忙给出正确答案和分析,谢谢!
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正确答案:D
固定搭配题。ofnoavail指“无用的,无效的”,与句意相符。innoway“绝不,无论如何不”;onthecontrary“相反地”;ataloss“不知所措”。
