Choose the best answer to complete the sentences
Choose the best answer to complete the sentences.
1. Son Tung _____________ a project on energy source at present.
A. does
B.do
C.did
D. is doing
2.What should we do to _____________ water?
A. cut
B. take
C. save
D. waste
3.The problem with fossil fuels is that they are not _____________.
A. expensive
B. limited
C. renewable
D. non-renewable
4._____________ source of energy is the source that can't be replaced after use.
A. Renewable
B.Natural
C. Effective
D. non-renewable
5.We are looking for cheap, clean and _____________ sources of energy.
A. effective
B.efficient
C. serious
D. dangerous
6.We should put _____________ on our roof for the heating and hot water.
A. solar energy
B.equipment
C. cracks
D. solar panels
7.We should use _____________ light bulbs in our homes.
A. low energy
B.little energy
C. a bit energy
D. efficient
8. They______for a new energy source to replace coal now.
A. looked
B.are looking
C.look
D. looking
9.Do your parents _____________ coal as well as wood to make a fire for cooking?
A. burn
B. heat
C. reserve.
D. produce
10.Many countries in the world _____________ wind power on a commercial basis today.
A. used
B. will use
C. are using
D. uses
11.Now, automakers _____________ fuels cells that extract hydrogen from gasoline.
A. developed
B. develops
C. are developing
D. will develop
12.Now, humans _____________ on the sun and word for heat.
A. rely
B. relies
C. are relying
D. relied
13.Look! The students ______ soccer on the school yard .
A. is playing
B. are playing
C. will play
D. paly
15.Solar energy, air and water are _____________.
A. renewable
B. limited
C. restricted
D. narrow
16.Although nuclear power is clean and plentiful, it is not _____________.
A. dangerous
B. unsafe
C. safe
D. renewed
17._____________ energy sources include water and wind power.
A. Friendly environmental.
B. Environmentally friendly
C. Friendly environment.
B. Environmental friendly
18.Solar energy can be changed into _____________.
A. electricity
B. electric
C. electrician
D. electrical
19.They are tputting solar pannels on the roofs of our houses to produce_______energy.
A. air
B. solar
C. wind
D. water
20.We must _____________ the amount of water our family use every day.
A. lower
B. reduce
C. listen
D. play