单项选择题

Heat causes the（）of gas.

A.growth
B.increase
C.expansion
D.extension

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单项选择题
He is（） at doing this kind of job.

A.imefficient
B.nonefficient
C.unefficient
D.inefficient
单项选择题
Cycling is a good exercise.（）, it doesn't pollute the air.

A.Therefore
B.Moreover
C.But
D.However
单项选择题
Speed limits should lead（） fewer deaths on the roads.

A.to
B.off
C.on
D.in
单项选择题
The hospital is carrying（）tests to find out what’s wrong with her.

A.over
B.out
C.off
D.away
单项选择题
Hello, I’m Harry Potter. Hello, my name is Charles Green, but（）.

A.call    my    Charles.
B.call   meat   Charles.
C.call   me    Charles.
D.call   Charles    me.
单项选择题
Thank you for your help. （）

A.My  pleasure./You’re  welcome./Noproblem
B.Never  mind
C.Quite  right.
D.Don’t    thank    me.
单项选择题
How are you，Bob？—greetings How do you do？Hello!Hi!What’s up？（）Ted

A.How   are   you？
B.I’m   fine.Thank  you.
C.How  do  you   do？
D.Nice   to   mee   tyou.
单项选择题
As there was a power failure in the hospital, the doctor had to （）operation.

A.call for
B.call off
C.call on
D.cal lout
单项选择题
Television keeps us informed about （）events and the latest developments in politics and science.

A.current
B.past
C.favorable
D.new
单项选择题
Such problem （）air, water, and noise pollutions are becoming more and more serious in some big cities.

A.like
B.as
C.of
D.about
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