—The box is too heavy to carry. What’s in it?
—Oh, it is books.
- A.filled with
- B.covered with
- C.used for
- D.asked for
答案
正确答案:A
知识点:动词短语

fill with“用……装满”;cover with“用……覆盖”;use for“用来做”;ask for“请求”。根据语境,箱子里应该是装满书,所以用filled with。正确答案为A。

略
