單項(xiàng)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


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

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

2.單項(xiàng)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

4.單項(xiàng)選擇題Several languages are likely to die()

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

5.單項(xiàng)選擇題Heat causes the()of gas.

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