—WhereisJohn？Ican'tfindhimanywhere.—Oh,hehas

问题详情：

—Where is John？I can't find him anywhere.

—Oh, he has________to the library.

A．been                       B．gone 

C．been going                  D．been gone

【回答】

B　[have been to表示去过，但已回来；have gone to则表示去了，还没回来。根据题意可知选B。]

知识点：现在完成时及其被动式

题型：选择题