问题

We looked at each othersurprise when we heard a bird singing “Happy birthday to you “. [ ]
A: in
B: to
C: by
D:at
B: to
C: by
D:at
正确答案是:
同类题型
This is not___ watch. I think it’s ___watch.
I want to be a computer manager.-_______. I am studying computer science very hard. [ ]
is a good idea to bring your camera because you may want to take photos of the autumn leaves.
Please send ________ best wishes to Mary.
I am lucky ______ the thing I enjoy doing most is ______ I’ve ended up doing.