2. Choose the best answer to fill in the blank. (2p)
1.
causes many breathing problems.
B. Fresher air
A. Polluting air
2. Our houses will use the sun or the wind
A. to do
B. to make
3. Many products are now helping you
A. reuse
B. cut down
4. Our dream house will be located
76
C. Fresh air
electricity.
C. to give
C. recycle
the sea.
A. between
B. in
C. at
5. We should open all the windows, so we don't
A. needn't
B. have to
C. need
6. In the future, cars might use energy from
A. oil
B. power
C. water
7. It takes a lot of energy to keep food cool, so don't
putting hot things inside.
A. make
B. have
D. Polluted air
your energy bills.
D. to have
C. do
D. reduce
D. on
use air-conditioners.
D. have
C. leave
D. stop
8. Plant more trees in the schoolyard because they will provide shade and
the atmosphere fresher.
A. have
B. make
aske
D. gas
the fridge door open or
D. use
A. of
A. Str
Rea
Iw