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The direction_____ which the president would go was kept a secret_____ safety concern.

A. for, over           B. from, about         C. in, for            D. at, as

_____ at the back of the theatre, the girl couldn’t see ZhouJielun clearly.

A. Seating       B. Sited             C. Seated            D. Seats

We have the most population in the world, most of it _____ farmers.

A. to be          B. is              C. are               D. being

They are forbidden _____, for they are still middle school students.

A. to smoking     B. to smoke       C. smoked         D. smoke

It's quite obvious that the aging population in China will cause        heavy pressure on            ________ whole society in the future．

A．／；the         B．the；／         C．a(chǎn)；the        D．a(chǎn)：a

The students are forbidden，unless they have special passes，________after 11 p.m.

A．of staying out　　　　B．to stay out      C．staying out        D．stay out

—Where would you like to have your dinner, in a French restaurant or in a Chinese one?

—It makes        to me as long as we can chat while having dinner.

A. no difference       B. no sense         C. much difference     D. much sense

As a coach，you should know clearly about the direction         your team should develop．

A．to which         B．in which         C．on which      D.  for which

With coal and oil        , what long-term effects of global warming on humans will be?

A. run out of         B. are using up       C. run out         D. running out of

Mr. Lin _____ when I go to see him on Sundays.

A. is always working             B. was always working

C. always worked                D. has always worked