问题补充:
He doesn’t know.
A. to do what
B. to do how
C. what to do
D. how to do
答案:
A. to do what
B. to do how
(答案→)C. what to do
D. how to do
解析:句意:他不知道做什么。Know后面接的是宾补从句,疑问词后面用不定式,what to do做什么;故选C。
时间:2018-10-20 13:16:18
He doesn’t know.
A. to do what
B. to do how
C. what to do
D. how to do
A. to do what
B. to do how
(答案→)C. what to do
D. how to do
解析:句意:他不知道做什么。Know后面接的是宾补从句,疑问词后面用不定式,what to do做什么;故选C。