1 . It is obvious __________ we should cooperate with each other and make full preparations for the competition. (用适当的词填空)

2 . 你文章里所陈述的事情与该问题并不相关。
________ you state in your essay is not ________ to the issue.

3 . It is amazing ________ the ancient people could have built such great architecture. （用适当的词填空）

4 . —What made her mother so angry?
—______the exam.

A．because she didn't pass	B．Her not pass
C．That she didn’t pass	D．Because her no passing

5 . Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.

A．whether	B．why
C．when	D．how

6 . The foreign minister said, “______ our hope that the two sides will work towards peace.”

A．This is	B．There is
C．That is	D．It is

7 . It is not immediately clear ______ the financial crisis will soon be over.

A．since	B．what
C．when	D．whether

8 . ______ seems strange to us is _______ the troublesome boy is getting along well with his teachers now.

A．It; that

B．What; how

C．It; how

D．What; that

9 . The tour pal lost his way in the mountain; ________ made things worse was that it began to rain.

A．that	B．what
C．which	D．who

10 . ____ is known to all is ____ Diaoyu Island is part of China.

A．What; that.

B．It; that.

C．As; that.

D．What; what.