Question

2 Complete the sentences with the correct form of the verbs brackets. Use the present simple
and will.
1 If we __________ (fly) less when we travel, it __________ (reduce) pollution.
6 Some endangered species __________ (become) extinct if we __________ (not protect) them.
7 We __________ (not be) late if Dad __________ (give) us a lift.
8 If our natural resources __________ (run out), humans __________ (not have) enough energy
to survive on Earth.
9 More people __________ (have) homes if we __________ (build) larger houses.

Answer 1

1. If we fly less when we travel, it will reduce pollution.
6. Some endangered species will become extinct if we don't protect them.
7. We'll not be late if Dad gives us a lift.
8. If our natural resources run out, humans will not have enough energy.
9. More people will have homes if we build larger houses.

Answer 2

If we fly less when we travel, it will reduce pollution.
--
Some endangered species will become extinct if we don't protect them.
--
We won't be late if Dad gives us a lift.
--
If our natural resources run out, humans won't have enough energy
to survive on Earth.
--
More people will have homes if we build larger houses.
--


Небольшое правило:
Если предложение стоит перед if, unless, when, мы используем Present Simple.