问题

They like going to sleep early, don’t they—- Yes. They are accustomed ___________ very late.

A:to stay up
B:to not stay up
C:to staying up
D:to not staying up

正确答案是：

同类题型

Did they takeany photos一______．

-Do you have enough to __________ all your daily expenses? —–Oh, yes, enough and to spare．

I’ve been fortunate to find a career that I love and, _____, I get well paid for it.

We have __________ English class __________ Monday morning.

It is very important for us to _______ between good and bad.