题目内容
When the fire broke out, Mary didn't know ___.
A. what to do B. what do C. to do what D. what thing to do
A
解析:
Mary didn't know what to do意为: Mary不知道该做些什么? what to do作know的宾语.
练习册系列答案
相关题目
题目内容
When the fire broke out, Mary didn't know ___.
A. what to do B. what do C. to do what D. what thing to do
A
Mary didn't know what to do意为: Mary不知道该做些什么? what to do作know的宾语.