When to compare the education system of China and Britain, the professor gave no answerA

发布时间：2020-08-17 04:11:40

When      to pare the education system of China and Britain, the professor gave no answer．
A. ask
B. asking
C. asked
D. to ask

网友回答

A. ask
B. asking
(答案→)C. asked
D. to ask
解析：连词状语从句的省略。本题在when后面省略了the professor was；句意：当这位教授被请求比较中国和英国的教育体系的时候，他没有给出答案。当状语从句的主语和主句主语一致，且含有be动词的时候，可以把状语从句的主语和be动词一起省略。故C正确。
以上问题属网友观点，不代表本站立场，仅供参考！