1 . _________, I always feel I want a few more days.

A．However long is a vacation	B．However long a vacation is
C．However is a vacation long	D．However a vacation is long

2 . I can’t remember _____________ made the teacher give Mary the permission to leave the class earlier.

A．that it was what	B．what it was that
C．what was it that	D．that was it what

3 . —Was it last summer         you luckily got an opportunity to spend your holiday in Hawaii ?
—Not me . John was the lucky dog .

A．that

B．when

C．which

D．what

4 . Nowhere else in our world ________ such a quiet, beautiful place ________ Angkor Wat.

A．there can be; in

B．is there; that

C．there is; as

D．can there be; as

5 . The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.

A．what; that

B．that; which

C．that; that

D．which; which

6 . _____ this afternoon, you would have to come again next week.

A．The boss were not to return	B．The boss didn’t return
C．Didn’t the boss return	D．Were the boss not to return

7 . Here are two pairs of shoes, ______ you may choose.

A．both of them	B．either of them
C．any of which	D．either of which

8 . At the party，John made up a joke，________ people burst out laughing.

A．on which

B．by which

C．at which

D．from which

9 . I’d appreciate      if you could turn the radio down. I’m doing my homework.

A．you

B．that

C．this

D．it

10 . ---Shall I tell your best friends what happened to you yesterday?
—          they ask you．

A．Not if

B．Not unless

C．Not except

D．Not though