题目内容
It was late at night. But Dr Hill and Dr White were still going on with ______ work.
[ ]
A. his B. their C. her D. your
答案：B
练习册系列答案
相关题目
题目内容
It was late at night. But Dr Hill and Dr White were still going on with ______ work.
[ ]
A. his B. their C. her D. your
