I didn’t know .A. when did the plane take offB. when the plane took offC. when the plane t

发布时间：2020-08-21 00:33:14

I didn’t know      .
A. when did the plane take off
B. when the plane took off
C. when the plane takes off
D. when does the plane take off

网友回答

A. when did the plane take off
(答案→)B. when the plane took off
C. when the plane takes off
D. when does the plane take off
解析：特殊疑问词作宾语从句，将特此作为连接词，后接陈述句语序。故选B
以上问题属网友观点，不代表本站立场，仅供参考！