Computers in offices and homes since 1970s．
| A．have been used | B．had been used | C．was | D．has been used |
Being a good listener is a kind of quality and that’s ___ it takes to keep friendship.
| A．how | B．what | C．which | D．where |
Does it make any difference __________ he refuses or accepts the invitation?
| A．whether | B．which | C．if | D．that |
---Will you please stop that ? I’m doing my homework.
---I don’t see____it bothers you.
| A．how | B．what | C．if | D．where |
It made all the Chinese happy _______ China succeeded in sending up ShenzhouⅦ．
| A．when | B．which | C．that | D．If |
______ he told us is the news _______ China has got 32 gold medals in the 28th Olympic Games in Athens, _________, of course, made the nations feels very excited.
| A．What; which; which | B．That; that; which | C．What; that; which | D．That; that; what |