f
题目21
The hospital is carrying ____ tests to find out what's wrong with her.
选择一项：
a. over
b. out 正确
c. off
d. away
正确答案是：out
题目22
Speed limits should lead ____ fewer deaths on the roads.
选择一项：
a. to 正确
b. off
c. on
d. in
正确答案是：to
题目23
a. result in
b. results in
c. results from
d. result from
正确答案是：results from
题目24
He's hoping for ___ as a doctor.
选择一项：
a. job
b. a work
c. labour
d. a career
正确答案是：a career
题目25
Cycling is a good exercise. ____, it doesn’t pollute the air.
选择一项：
a. Therefore
b. Moreover
c. But
d. However
正确答案是：Moreover
题目26
He is ____ at doing this kind of job.
选择一项：
a. imefficient
b. nonefficient
c. unefficient
d. inefficient
正确答案是：inefficient
题目27
Heat causes the ____ of gas.
选择一项：
a. growth
b. increase
c. expansion
d. extension
正确答案是：expansion
题目28
Several languages are likely to die ____.
选择一项：
a. out
b. down
c. off
d. of
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