1 . In the past decade, our education system          too much on grades. However,      grades have a direct connection with future success is still a question.

A．focused; whether	B．focused; if
C．has focused; whether	D．has focused; if

2 . _______ is known to us all is that China is a developing country ______ the Third World.

A．As; belong to	B．It; belongs to
C．What; belonging to	D．That; belonging to

3 . _____ is known to us all is that the 2008 Olympic Games will take place in Beijing.

A．It

B．What

C．As

D．Which

4 . ______ has finished the work ahead of time will be rewarded though we don’t know______ it will be.

A．Who; who	B．Whoever; whoever
C．Who; whoever	D．Whoever; who

5 . It remains to be seen ________ the newly formed committee’s policy can be put into practice.

A．that	B．which
C．what	D．whether

6 . _____ life exists on any other planet in the solar system still remains a question.

A．Why

B．Whether

C．How

D．Where