To save energy , all the lights should be turned off before going out .
A.To save
B.should be
C.turned off
D.going out .

Have seen the film twice , I don’t want to see it again any more .
A.Have seen
B.twice
C.to see
D.any more .

(22)
A.was driving
B.drove
C.had been driving
D.having driven

(23)
A.with
B.in
C.on
D.by

(25)
A.quick
B.slow
C.slowly
D.slowness

When is an area considered “ under-populated ” ?
A.When its population is not big enough to maintain the economic system .
B.When it has high number of HIV – related deaths .
C.When its population is too poor .
D.When it has high fertility rate

Which areas are expected to encounter a decrease in population growth in the next decades ?
A.Some countries in Central and Eastern Europe ,
B.Japan
C.Some countries in Western Europe ,
D.B and C

The mouse family avoided............by coming out only when the two cats were outside
A.catching
B.to be caught
C.being caught
D.to have been caught

. ………………the instruction, he snatched up the fire extinguisher
A.To have read
B.I have read
C.I read
D.Having read

Your friendship should be base on …………..trust.
A.basic
B.fragile
C.mutual
D.blind