Question

【题目】 But none of the artists knew _____to make the King happy.

A. when to do B. what to do

C. how to do D. where to do

Answer 1

【答案】B

【解析】

试题分析：句意：但没一个艺术家知道做什么让国王开心。A when to do什么时候做， B what to do做什么，C how to do怎样做，D where to do在哪里做。据题意，故选B。