问题

After a long walk, they______ pass over the mountain.

A: could be able to
B:can
C:would
D:were able to

正确答案是：

同类题型

The exhibition will _____to those who love painting.

Viena is oldcity the river Danube.

I think students should have mobile phones to call their parents.- _____. They often use them to play games instead.

Look at the timetableHurry up! Flight 4026_____off at 18:20.

Is it OK if I take this seat?—Sorry,___________