Page 68 - Grasp English B1 (Grammar Book)

11 Gatherings

B. Fill in the blanks with if or unless.
1. The students can study in the library
they make noise.

2. we pollute our world,
many animals will disappear.
3. Hunters won’t kill tigers, leopards, and
pumas for their skin
people don’t wear animal skin coats.
4. Tim gives us a lift to the
airport, we won’t catch the plane.
5. the police catch the
murderer, they will arrest him.
6. We will go on a picnic it rains.

7. The workers will go on a strike they get a rise.
8. Our grandsons will accuse us we don’t protect our natural world.

9. People will have a lot of accidents they obey the traffic rules.
10. the snow on the mountain melts, the climbers can’t climb.
11. Alice won’t complain about her neighbours they disturb her.
12. she studies regularly, she can’t learn much.

C. Rewrite the following sentences using unless or if...not.
1. If we don’t get enough rain, the crops will not grow.
.
2. If you don’t visit London, you won’t see Big Ben.
.
3. We won’t arrive at the airport on time unless we leave immediately.
.
4. Unless you apologise to her for your rudeness, she won’t forgive you.
.

5. If he doesn’t obey the traffic rules, he will be in trouble.
.

6. If she doesn’t finish her makeup, she can’t go out.
.
7. Unless you complain to the police, I’ll give your money back.
.
8. You can’t enter the UK unless you have got a visa.
.
9. If he doesn’t get a sleeping pill, he can’t sleep well.
.
10. The boss won’t increase your salary unless you demand it.
.

66 Grasp English B1 Grammar Book © Prime Press, 2021 | www.primepress.com