问题

I called you at 4:00 yesterday afternoon, but nobody answered.—Sorry, I ______ with my friends at that time.

A:had swum
B:swam
C:would swim
D:was swimming;

正确答案是：

同类题型

They hurried to the trD．or

He fell off his bike and hurt hisback._____, he will have to stay in hospital for a long time.

have been worried about the possible danger of driving on a railway line.— Do not be afraid; God will ________ us. [ ]

How is Helen in the new school— She is doing very well. There is ____ to worry about(担心).

I can’t figure out ____ you didn’t call Ted back that day. [ ]