Question

【题目】—_______ they _______ the book _______ to the library yet?

—Yes, they have.

A. Have; returned; / B. Have; returned; back

C. Did; return; / D. Did; return; back

Answer 1

【答案】A

【解析】试题分析：句意：-他们已经把书还给图书馆了吗？-是的，他们已经还了。根据问句中yet和答句中they have 可知本句用现在完成时，return意为归还，相当于give back，故选A。