–Where is Li Ping? –He’s the library.A. went toB. goingC. gone toD. been to

问题补充：

–Where is Li Ping? –He’s the library.

A. went to

B. going

C. gone to

D. been to

答案：

A. went to

B. going

(答案→)C. gone to

D. been to

解析：考查时态。根据句意可知他已经去图书馆，故用现在完成时。句意：——李平在哪儿？——他已经去图书馆了。