问题补充:
Miss Green isn’t in the office. She to the library.
A. went
B. was
C. has gone
D. has been
答案:
A. went
B. was
(答案→)C. has gone
D. has been
解析:句意:格林老师不在办公室。她已经去了图书馆。结合语境可知本句描述的是现在已经完成的动作,故用现在完成时态。在完成时态中has been to 是已经去过某处,并且已经回来了。has gone to 是已经去了某处,但是到目前为止还没有回来。结合语境可知选C。