问题

I don’t know ___________next. —-You’d better finish your homework first.
A:when to do
B:how to do
C:what to do
D:where to do
B:how to do
C:what to do
D:where to do
正确答案是:
同类题型
It’s so cold. You’d better __________ your coat when you go out.
Is there _______ juice in the glass?—Yes, there is_______.
____ you come to my birthday party tomorrow, Robert? –I’m afraid not. I have to study for my exam.
Simon usually plays_______ guitar on Sunday morning and plays_______ chess on Sunday afternoon.