问题
What are you doing ______ vacation? —I’m going fishing. [ ]
A: to
B: at
C: for
D:by
B: at
C: for
D:by
正确答案是：
同类题型
He has three hamburgers _________ lunch.[ ]
Do you buy these sweaters______Shanghai?—Yes. I sell them ______the people in Suzhou. [ ]
The project will not be completed ____ 2012.[ ]
The new airport has been in _______ for two years and it _______ to be a quiet place.
I find ____ difficult to remember everything, though I’m still young.