问题

What are you __________?-I’m preparing for my math test.[ ]
A: cooking
B: going
C: up
D:up to
B: going
C: up
D:up to
正确答案是:
同类题型
It’s raining hard. You’d better . [ ]
This isn’t your bag. It’s ____. Yours is at home.
When and where shall we meet tomorrow? —Let’s _______ it 3:00 p. m. at my home.
The doctor told him that he should take a holiday to relax himself, but _________ didn’t help.
The two trains go______ the tunnel ______ the same time. [ ]