问题

To improve the quality of our products, we asked for suggestions _____ had used the products.

A:who
B:whoever
C:which
D:whichever

正确答案是：

同类题型

I’m sorry. I shouldn’t have shouted at you the otherday.—______. I was a bit out of control myself.

I hope you can provide me with some information about this holiday.

Is there any present for me ? —Of course .This necklace __you .

Let’s ______ each other.

I’ve got really ____ while hearing the bad news.