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單項選擇題Such changes can alter the social structure,（）people to move.

A.which leading
B.leads
C.which led
D.leading

1.單項選擇題There are many cities（）very fast.

A.expanding
B.expands
C.expanded
D.expand

2.單項選擇題Civil war or regional conflicts also cause disruption,（）people out of rural areas.

A.drives
B.drove
C.driving
D.driven

3.單項選擇題This growth,（）mainly in Southeast Asia and Africa, has dramatic consequences.

A.happens
B.which is happening
C.which happening
D.which happened

4.單項選擇題Sixty million people who（）in rural areas are moving to cities every year.

A.lived
B.lives
C.living
D.live

5.單項選擇題I spent most of my money in the first week and（）had very little for food at the end of the holiday.

A.since
B.however
C.moreover
D.consequently

6.單項選擇題He is trying to find a new way to（）a living. Which of the following is incorrect.

A.get
B.earn
C.take
D.make

7.單項選擇題Several languages are likely to die（）

A.out
B.down
C.off
D.of

8.單項選擇題Heat causes the（）of gas.

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

9.單項選擇題He is（） at doing this kind of job.

A.imefficient
B.nonefficient
C.unefficient
D.inefficient

10.單項選擇題Cycling is a good exercise.（）, it doesn't pollute the air.

A.Therefore
B.Moreover
C.But
D.However