57.I ________him singing.

2024-01-16 16:24:42
大学英语4

57.I ________him singing.

A.have never heard

B.never have heard

C.have heard never

正确答案是A

上一篇：56.The ________have a lot of time to do their own research work.

下一篇：58.The old man walked home________.