27. If we all use ______ bags, we'll help the environment.
A. reusable B. new C. beautiful D. dirty
28. Our family ______ to the new house next week.
A. will move B. moves C. move D. moved
29. If we ______ trees, our school ______ greener.
A. will grow/ is B. grow/ will be C. will grow/ are D. grow/ is
30. People ______ the environment if they ______ old items.
A. saved/ use B. save/ will use C. will save/ use D. save/ use

31. If they ______ an airport here, it ______ very noisy.
A. builds/ be B. build/ will be C. built/ is D. will build/ is
32. If the weather _______ sunny, I _______ to the zoo tomorrow.
A. is / go B. is / will go C. are/ go D. are / will go
33. Last night, I ________ out for dinner with my friends.
A. went B. go C. am going D. goes
34. The robot will help me to ______ the dogs and cats.
A. go B. feed C. swim D. make
35. What can an ________ helps us to do? - It can help us to cook rice.
A. fridge B. smart TV C. computer D. electric cooker

26. ______ Sun keeps ______ Earth warm.
A. A/ an B. A/ a C. The/ the D. A/ the
27. If we all use ______ bags, we'll help the environment.
A. reusable B. new C. beautiful D. dirty
28. Our family ______ to the new house next week.
A. will move B. moves C. move D. moved
29. If we ______ trees, our school ______ greener.
A. will grow/ is B. grow/ will be C. will grow/ are D. grow/ is
30. People ______ the environment if they ______ old items.
A. saved/ use B. save/ will use C. will save/ use D. save/ use

Choose the letter A, B, C or D to complete the sentences with given words

Question: If/ we/ use/ reusable/ bags/ protect/ environment.

A. If we use reusable bags, we will protect the environment.

B. If we use reusable bags, we would protect the environment.

C. If we don’t use reusable bags, we will protect the environment.

D. If we use reusable bags, we will protect environment

write the conditional sentences from the following statements

1 we will plant more trees.The air will be fresher

if...................................................................

2 we will use fewer cars.We will reduce pollution

if.....................................................................

3 we will cycle to school every day.We will keep fitter

if...........................................................................

4 we will use recycled products.We will save money

if.......................................................................

5 people will thow rubbish into the right bin.They will keep the environment chean

if......................................................................................................................

6 we will turn off the tap whwn brushing the teeth .We will save a lot of water

if........................................................................................................

7 people will travel more by public transport.The harmful gases in big cities will be reduced

if.............................................................................................................................

8 we will start at six .We will arrive there before noon

if.........................................................................

9 the boy eats so may green apples.He will be ill

if...................................................................

10 we will use reusable bags for shopping.We will reduce waste

if..................................................................................

I: Put the words or phrases in the right order to make sentences.

1. If/ is polluted/ fish/ the river/ will die.

..............................................................................................................................................

2. We/ recycle/ rubbish/ should/ try to.

.................................................................................................................................................

3. Don't throw/ plastic bags/ the/ because/ can reuse them/ you.

..................................................................................................................................................

4. You/ should/ when/ use reusable bags/ you go shopping

..................................................................................................................................................

5. If/ there/ people recycle more/ pollution/ will be less.

....................................................................................................................................................

II. Write conditional sentences from these statements.

1. We will plant more trees. The air will be fresher.

If......................................................................................................................

2. We will use fewer cars. We will reduce pollution.

If..........................................................................................................................................................

3. We will cycle to school every day. We will keep fitter.

If..............................................................................................................................................................

4. We will use recycled products. We will save money.

If..........................................................................................................................................................

5. The boy eats so many green apples. He will be ill.

If..........................................................................................................................................................

6. We will use reusable bags for shopping. We will reduce waste.

If..........................................................................................................................................................

7. She doesn't hurry. She is late for school.

If............................................................................................................................................................

8. You don't water the plants. The die.

If.............................................................................................................................................................

I: Put the words or phrases in the right order to make sentences.

1. If/ is polluted/ fish/ the river/ will die.

..............................................................................................................................................

2. We/ recycle/ rubbish/ should/ try to.

.................................................................................................................................................

3. Don't throw/ plastic bags/ the/ because/ can reuse them/ you.

..................................................................................................................................................

4. You/ should/ when/ use reusable bags/ you go shopping

..................................................................................................................................................

5. If/ there/ people recycle more/ pollution/ will be less.

....................................................................................................................................................

II. Write conditional sentences from these statements.

1. We will plant more trees. The air will be fresher.

If......................................................................................................................

2. We will use fewer cars. We will reduce pollution.

If..........................................................................................................................................................

3. We will cycle to school every day. We will keep fitter.

If..............................................................................................................................................................

4. We will use recycled products. We will save money.

If..........................................................................................................................................................

5. The boy eats so many green apples. He will be ill.

If..........................................................................................................................................................

6. We will use reusable bags for shopping. We will reduce waste.

If..........................................................................................................................................................

7. She doesn't hurry. She is late for school.

If............................................................................................................................................................

8. You don't water the plants. The die.

If.............................................................................................................................................................

Chọn 1 từ trong ngoặc:

1. Next week our class is having a discussion about finding_______ways to reuse old items before throwing them away. (Interested/ Surprising/ Useless/ Survey)

2. It is a good idea to______our clothes with our friends or cousins. ( Change / Swap/ Turn/ Send)

3. If people turn off all electric appliances in one hour all over the world, they can save a lots of_________( Electric/ Electrical/ Electrician/ electricity)

4. You should put the food in a reusable box___plastic bags. (By/ Instead of/ Because of/ Without)

5. If we use_______paper, we will save a lot of trees. (Fewer/ Less/ More/ Much)

6. Don' t throw rubbish into the river because you will make it______________>(Greener/ Dirty/ Cleane/ Fresher)

7. If there  is a rubbish bin in every class, the classroom will become_______________( Harmful/ Lighter/ Dirtier/ Cleaner)

8. If we all use_________bags, we will help the environment. ( New/ Cheap/ Reusable/ Reduced)

9. This newspaper is made of_____paper. (Recycle/ Recycled/ Old/ Waste)

10. Please collect all the recyclable materials, and take them to the_______-factory. ( Recycle/ Recycled/ Recyclable/ Recycling)

11. Reduce, reuse, recycle is said to encourage people to waste less, by using less and using things, in order to__________the environment. (Harm/ Damage/ Pollute/ Protect)

12. These three Rs_____________reduce, reuse and recucle. (Stand up/ Stand for/ Ask for/ Means)

13. If you have old clothes, will you give them to those___________?(Needs/ To need/ For needing/ In need)

14. It's very_________--to swim there. The water is healthy polluted (safe/unsafe/unpopular/exciting)

15. Many girls and women_________aerobics to keep fit. (play/ go/ do/ have)