By the end of this month, we surely______a satisfactory solution to the problem.

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问题 By the end of this month, we surely______a satisfactory solution to the problem.

选项 A、have found
B、will be finding
C、will have found
D、are finding

答案C

解析 本题旨在考查谓语动词时态的用法。by意为“不迟于,到……为止”,通常要与完成时连用。由于本句的时间状语by the end of this month是表示“截止将来的某一时刻之前”的概念,因此谓语动词须用将来完成时,例如:I shall have left by the time you return.等你回来时,我就走了。By the end of next year,they will have finished the work onthe new stadium.到明年年底,新体育场就会竣工。The railway will have been completed bythe end of this month.那条铁路将于月底建成。由此可见,C是正确答案。
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