问题

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

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

正确答案是：

同类题型

More than ______ people visited the ______ car exhibition.

The hero’s story _______ differently in the newspapers .

Why don’t you look ________ today —- My parents seem ________with me.

It is important people learn team spirit.

We should tell hunters _______tigers.