1 . It is________ that Zhengzhou is not ________ it used to be.

A．worth noting; that	B．worthy of being noted; what
C．worth being noted;what	D．worthy noting; that

2 . －How do you usually find out about new software?
－In the magazines like Popular Electronics. That’s______computer companies usually advertise.

A．which

B．where

C．what

D．why

3 . The policy of the mainland is very clear and   straightforward，and the key problem is_____the   leaders of Taiwan will accept it.

A．that

B．how

C．why

D．whether

4 . Realizing the great renewal of the Chinese nation is just _____ we call “China dream”.

A．which

B．what

C．that

D．where