问题
My father is very busy. He is still ______ work now. [ ]
A: at
B: on
C: for
D:in
B: on
C: for
D:in
正确答案是：
同类题型
Is there a film_____ Wednesday? —Yes, there is. [ ]
Are you going to the bank, Laura? —No, I to the bank already.
This is my first trip ______ Beijing. [ ]
_______ late for school again, Tim!— Sorry, I promise that I _______.
How about talking with others in English if I want to learn English? —In my opinion, ________.