I don’t think it is taking the trouble to explain the question to him. A. worthB. worthyC.

问题补充：

I don’t think it is taking the trouble to explain the question to him.

A. worth

B. worthy

C. worth of

D. worthwhile

答案：

A. worth

B. worthy

C. worth of

(答案→)D. worthwhile

解析：be worth后的动名词要用主动表被动。与worth相似的worthy却不一样，其后不接动名词而接不定式(若接动名词则其前应有介词of)，且要用被动式表示被动含义。Worth是价值的意思，worthwhile值得做的，根据后面动名词短语作状语，故选D，