问题

I didn’t know _______

A:where did he use to live
B:where did he use to living
C:where he used to live
D:where he used to living;

正确答案是：

同类题型

______ salt do we need— One spoon is enough.

Are you sure that you are satisfied with this job?—YesNothing can be better

1. How beautifully she sings! I have neverheard _____ voice.

job interviews job applicants often findthemselves asked unexpected questions, some very difficult ____.

Mto talk to strangers.