When_________ why he was late, he made no answer.
A. questioned B. questioning
C. asking questions D. question
When_________ why he was late, he made no answer.
A. questioned B. questioning
C. asking questions D. question
A
此处为“when+过去分词”结构,此时when从句中的主语不是主句中的主语,即主谓不一致。