問題詳情:
—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表示去過,但已回來;have gone to則表示去了,還沒回來。根據題意可知選B。]
知識點:現在完成時及其被動式
題型:選擇題