the last question that our english teacher asked was difficult ___A to answer to B to be answered C answering D to answer选择哪个,为什么?谢谢!

分类: 作业答案 • 2022-01-02 13:59:01

问题描述：

the last question that our english teacher asked was difficult ___
A to answer to B to be answered C answering D to answer
选择哪个,为什么?谢谢!

答