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

Thanks for giving me ____ many presents. I haven’tnever seen ____ beautiful presents in my life.

What’smatterwith you —I have a cold. I want to go tobedearly.

Could you tell us ___________ –Sometimes，if I have time．

It was no surprise that an awful accident ____ occur the day when they were drunk

下列词语中加线的字，每对读音都不相同的一组是(　　)