Question

【题目】He issued a/an ___ to us to settle the trouble in five days, but nobody accepted it.

A.imagination

B.dream

C.advice

D.challenge

Answer 1

【答案】D

【解析】句意为“他向我们发出在5天内解决这一棘手的问题的挑战，但是没有人接受挑战”。考查了challenge表示“挑战”之意的用法，符合语境。