问题

If you don’t study English all thetime, you’ll have a difficult time ____ it in the future.

A:studying
B:to studying
C:studied
D:be studying

正确答案是：

同类题型

I lost my bike yesterday and had to walk home. —______________.

___________he is poor,________he is happy.

In the south of the city ______ two railway lines.

I think math is _________. I like it very much.

My book is here. Where is _____