câu 1 lm mẫu, lm câu 2,3,4,5 thôi

2. If we reuse bottles, we will save a lot of money.

3. If we use recycled paper, we will save trees.

4. If we plant trees in the school yard, the school will be a greener place.

5. If there is a rubbish bin in every class, the classroom will be cleaner.

Tham khảo 

1 if / burn rubbish, /produce harmful smoke .

⇒⇒If you burn rubbish, you will produce harmful smoke.

2 if / reuse bottles, /save a lot of money.

⇒⇒If you reuse these bottles , you will save a lot of money.

3 if/use recy cled paper , /save/trees.

⇒⇒If student use recycled paper,they will save a lot of trees.

4 if / plant trees in the schoolyard,/school/greener place.

⇒⇒If student plant trees in the schoolyard,their school will be a greener place.

5 if / rubbish bin in every class , / classrom / cleaner.

⇒⇒If there is a rubbish bin in every class,the classroom will be cleaner.

1. If/you/burn rubbish/you/produce harmful smoke

-> If you burn rubbish, you will produce harmful smoke 

2.If/we/reuse bottles/we/save a lot of money

-> If we reuse bottles, we will save a lot of money 

3. If/students/use recycled paper/they/save/trees

-> if students use recycled paper, they will save the trees

4. If/students/plant trees in the schoolyard/their school/greener place

-> if students plant trees in the school yard, their school will be a greener place

1. If/you/burn rubbish/you/produce harmful smoke

-> If you burn rubbish, you will produce harmful smoke 

2.If/we/reuse bottles/we/save a lot of money

-> If we reuse bottles, we will save a lot of money 

3. If/students/use recycled paper/they/save/trees

-> if students use recycled paper, they will save the trees

4. If/students/plant trees in the schoolyard/their school/greener place

-> if students plant trees in the school yard, their school will be a greener place

1 if / burn rubbish, /produce harmful smoke .

\(\Rightarrow\)If you burn rubbish, you will produce harmful smoke.

2 if / reuse bottles, /save a lot of money.

\(\Rightarrow\)If you reuse these bottles , you will save a lot of money.

3 if/use recy cled paper , /save/trees.

\(\Rightarrow\)If student use recycled paper,they will save a lot of trees.

4 if / plant trees in the schoolyard,/school/greener place.

\(\Rightarrow\)If student plant trees in the schoolyard,their school will be a greener place.

5 if / rubbish bin in every class , / classrom / cleaner.

\(\Rightarrow\)If there is a rubbish bin in every class,the classroom will be cleaner.

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1 I think Paul will pass the driving exam tomorrow

2 If we reuse bottles, we will save a lot of energy

3 Playing volleyball is more exciting than cycling

4 Have you ever climbed Mount Fansipan before?

1 I think Paul will pass the driving exam tomorrow

2 If we reuse bottles, we will save a lot of energy

3 Playing volleyball is more exciting than cycling

4 Have you ever climbed Mount Fansipan before?

1.If you burn rubbish, you will produce harmful smoke.

2.If we use reusable bottle, we will save a lot of money.

3.If we use recycled paper, we will save trees.

4.If they plant trees in the schoolyard, their school will be a greener place.

5. If there is rubbish bin in every classroom, the classroom will be cleaner.

6.If you forget all the time, you will have to pay a lot of money for electricity.

7.If we throw rubbish into the river, it will be polluted.

8.If there are many factories here, the air will be polluted.

9.If we grow flowers and vegetables, our house will be cleaner and more beautiful

1 How often do you practice playing badminton?

2 There is a beautiful picture on the wall of my room

3 If we reuse these bottles, we will save a lot of money

1-how ofter do you playing badminton

2-there is a picture on the wall of my room

3-if we reuse these bottle,we will save a lot of money