----- Nội dung dịch tự động từ ảnh -----
V. Choose the correct answer (A, B, c or D).
1. The wind, the sun, and the wave are some types of. .
sources of energy.
AND
A. changeable
B. alternative
C. cheap
D. costly
2. Remember to.
. the lights before going to bed.
A. turn
B.turn on
C.turn off
D. stop
3. People will reduce energy.
as much as possible.
A. consume
B.consumption
С.ехpense
D. expenses
4. Nuclear power is expensive and dangerous..
. our environment.
A. for
B.to
C.in
D. with
5. Human is looking for a clean, cheap and..
sources of energy.
A. effective
B. effect
C. effectiveless
D. effectiveness
6. Low energy light bulbs should be used to..
electricity.
A. spend
B.buy
C.convert
D. save