He didn’t make clear when and where the meeting would be held. A. this B. that C. it D

问题补充：

He didn’t make clear when and where the meeting would be held.

A. this B. that C. it D these

答案：

解析：本题重在理解it用法，本题中it 指代when and where the meeting would be held. 在句中作make的宾语，clear 清楚的，在句中作宾语补足语。

句意：他没有弄清楚，会议会在何时何地举行。故选C