问题

When you are sleeping, you had better _____ all your windows closed. [ ]

A: not to keep
B: not keep
C: not to keeping
D: not keeping

正确答案是：

标签： had , sleeping , when

同类题型

I think your mother is_____you at the school gate at the moment.

Can you ________ it ________ English?

She likessoccer after class.

This girl is ready to help people any time. When she is on the bus, she always her seat to someone in need.

My family ________ supper together every day. It’s really a happy time for all of us.