Choose the best options to complete the sentences.
which is partly caused by exhaust fumes from cars, is a
big cities across the world.
d by exhaust fumes from cars, is a very big problem in many
a) Smoke
b) Smell
c) Smog
occurs when pollution in the air is absorbed by water droplets in clouds.
a) Acid rain
b) Fossil
c) Pollution
3) Everyone should learn to
to do this.
energy. Using lights/lamps only when needed is a good way
a) concern
b) converse
c) conserve
4) Animal species that no longer exist are called
a) endangered
b) extinct
c) dead
5) Scientists say that before we
_oil we will have moved to alternative fuels.
a) run out of
b) use up
c) cut down
6) She buys too many things. She
all her money long before her next pay.
a) will be spending
b) will have spent c) will have been spending
7) At the current rate, temperatures by 3 or 4 degrees by 2050.
a) will have increased b) will increase c) will be increasing
8) I my homework when my father comes home.
a) will be doing
b) am going to do c) am doing
9) If you mix water and electricity, you
shock.
a) will get
b) get
c) will be getting
10) I hope all the irregular verbs before the exam.
a) will learn
b) are going to c) will have learnt
11) World leaders World leaders in Geneva tomorrow to discuss the issue of over
popullation.
a) meet
Bb), are meeting c) will meet
12) Unless we our emmisions to almost zero, the global temperature to rise.
a) don't reduce, will continue
b) will reduce, will countinue
c) reduce, will continue
2 She prepared breakfast yesterday.
3 She will prepare breakfast tomorrow morning
4 She is preparing breakfast now.
5 She was preparing breakfast yesterday at that time.
6. She will be preparing breakfast tomorrow at this time.
7 She HAS already PREPARED breakfast
8 She HAD PREPARED breakfast by 7 a.m yesterday
9 She will have prepared breakfast by 7 a.m. tomorrow
10 She had been preparing breakfast for 10 minutes already by that time yesterday.
11 She will have been preparing breakfast for 15 minutes by this time tomorrow.