There are two thousand students in this college, ________ are from the countryside．

one-third of them

one-third of which

one-third of whom

one-third in which

In the past ten years, the ________ mountain climber ________ a lot from his own adventurous ________

experienced; experienced; experience

experience; experienced; experiences

experienced; has experienced; experiences

experience; has experience; experience

The average temperature this year is ________ that of last year．

as not high as

not as high

not as higher as

not as high as

I don't suppose Tom has told you the news, ________?

do I

don't I

does he

has he

My mother insisted the coat ________ me quite well and that I ________ it when attending assembly．

fit; wore

fitted; wear

should match; wear

matched; wore

Tom, could you ________ your CD player a little bit?Dad is sleeping now．

turn on

turn off

turn up

turn down

________ there is no restriction on foreign entries at the film festival, those that win are in minority．

unless

When

Where

While

________ seems to be a strong competition in China for senior high students to enter college or university．

It

This

That

There

It is no use ________ to persuade him ________ smoking because he has been addicted to it since he was young．

trying, to quit

to try, to quit

to try, quit

trying, quit

I would have come earlier, but I ________ that you were waiting for me．

hadn't known

didn't know

would have known

haven't know