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

A．whatever

B．whoever

C．wherever

D．whichever

2 . —Do you think it wise for Chinese mothers to try to do everything for their children?
—No, that’s ________ they are mistaken.

A．where

B．what

C．when

D．how

3 . Don’t allow the Internet to control your life        it is widely used in many ways.

A．as if	B．even if
C．so long as	D．in case