问题

I counted sheep, I drank milk and I tried everything, but nothing helped—It seems you _____ too much recentlyTry some sleeping pills

A:worked
B:work
C:had worked
D:have been working

正确答案是：

同类题型

Many experts hold the view _______ protection awareness is _______ the key to better environment lies

―Twenty dollars, please!― How terrible!―I ________ to bring my wallet with me

n in a hurry, ___________How can it be satisfactory

As you know, the group of Eight is an organization _____the richest countries in the world.

下列各句中，表达得体的一句是（）