. he can finish his task on time is of great importance.A. WheneverB. IfC. WhetherD. Which

发布时间：2020-08-17 06:39:48

.     he can finish his task on time is of great importance.
A. Whenever
B. If
C. Whether
D. Whichever

网友回答

A. Whenever
B. If
(答案→)C. Whether
D. Whichever
解析：本题考查主语从句。B项if作为“是否”讲只能引导动词之后的宾语从句，因而排除；A,D两项与题意不合。如选A项，原题可改为“…is of no importance”。故答案为C.
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