1 . Happiness is ____________ you think, what you say and what you do are in harmony.

A．what	B．where what
C．when what	D．that

2 . The most important thing ________ we should pay attention to in an exam is ________ our teacher mentioned in class.

A．which; that	B．that; what
C．which; which	D．that; that

3 . Our country great changes in the past 30 years and it is no longer it used to be.

A．went through; what	B．has gone through; that
C．experienced; that	D．has experienced; what

4 . ________ much media attention is paid to the topic of raising children or caring for elderly parents in their final years，it seems ________ not much is explained on being a parent.

A．While；that	B．As；like
C．Because；that	D．Since；/

5 . The reason he gave for his absence was made up by his elder brother. In fact, the reason        he was absent is        he went to the zoo.

A．which; because	B．why; that
C．for which; because	D．that; for which

6 . A ship in harbor is safe, but that’s not ____ships are built for.

A．what	B．that
C．why	D．how

7 . One reason ______ Billy Crystal is popular with all age groups is _______ he is quick thinking and has the ability to amuse the audience.

A．that, that	B．why, because
C．why, why	D．why, that

8 . The place_____ the bridge is supposed to be built should be _____ the cross-river traffic is the heaviest.

A．which; where	B．where; in which
C．in which; where	D．in which; in which

9 . According to a recent survey, homework is          students most often blame for their lack of sleep.

A．why	B．that
C．what	D．which

10 . From space, the earth looks blue.This is _______about seventy-one percent of its surface is covered by water.

A．why	B．how
C．because	D．whether