1 . That is ______ many experts (专家) are worrying about.

A．what

B．why

C．whom

D．which

2 . I don’t care about the price. The question is ________ it is worth reading.

A．whether

B．what

C．if

D．that

3 . _______ one can succeed depends on _______ hard he works.

A．That; how

B．That; however

C．Whether; how

D．Whether; however

4 . Have you found the red mark(记号) on the map? This is ________ Huashan High School lies.

5 . Our school is no longer _________ it was 10 years ago, when it was not well equipped. (用适当的词填空)

6 . The reason why he didn't come was________ he went to Tokyo on business.

A．why

B．what

C．that

D．which

7 . The exact year ________ Lucia and her family spent together in China was ________ the Beijing Olympic Games was held.

A．which; where	B．when; when
C．which; when	D．when; that

8 . Tom missed the early bus. That was ________he was late for school.

A．why

B．because

C．for

D．how

9 . The best moment for the football star was _____________ he scored the winning goal.

A．where	B．when
C．how	D．why

10 . ---What attracts people to California is its pleasant climate and relaxed lifestyle.
---This is ____ each year a great number of people from all over the world try to ____ to California.

A．how; immigrate

B．Why; immigrate

C．because; remove

D．why; remove