A

B

B

C A

C

 A

A

A

XI. Joining two sentences, using the words in brackets.
1. We must conserve water. Otherwise we will face serious water shortages. (IF)
__________________If we don't conserve water, we will face serious water shortages ______________________________________________
2. The weather was awful. We didn’t enjoy our camping holiday. (BECAUSE OF)
____________________Because of the awful weather, we didn't enjoy our camping holiday____________________________________________
3. Plastic bags are non-biodegradable. They will remain in the environment for many years.
(SINCE)
______________________Plastic bags will remain in the environment for many years since they are non-biodegradable__________________________________________
4. Paul doesn’t think about the planet. He wastes so much water. (IF)
_______________________If Paul though about the planet, he wouldn't waste so much water_________________________________________
5. Water pollution happens. Many aquatic animals such as fish can die. (LEAD)
____________________Water pollution can lead to the death of many aquatic animals such as fish___________________________________________
6. The climate is changing. The earth is getting warmer. (BECAUSE)
_______________________Because the climate is changing, the earth is getting warmer _________________________________________
7. We should stop cutting down so many trees. We endanger our oxygen supply. (UNLESS)
_________________________Unless we stop cutting down so many trees, we will endanger our oxygen supply _______________________________________
8. People begin to recycle. They generate much less trash. (WHEN)
_____________________________When people begin to recycle, they generate much less trash___________________________________
9. We are damaging the ozone layer. The ozone layer is necessary for human existence.
(EVEN THOUGH)
___________________________Even though the ozone layer is necessary for human existence, we are damaging the ezone layer_____________________________________
10. Sue is suffering from skin cancer. She was exposed to radiation when she was young. (SO)
_______________________Sue was exposed to radiation when she was young so she is suffering from skin cancer_________________________________________

XI. Joining two sentences, using the words in brackets.

1. We must conserve water. Otherwise we will face serious water shortages. (IF)

_______________If we don't conserve water, we will face serious water shortages.

_____________________________________________________

2. The weather was awful. We didn’t enjoy our camping holiday. (BECAUSE OF)

___________Because of the awful weather, we didn't enjoy our camping holiday.

_________________________________________________________

3. Plastic bags are non-biodegradable. They will remain in the environment for many years. (SINCE)

________Since plastic bags are non-biodegradable, they will remain in the environment for many years.

____________________________________________________________

4. Paul doesn’t think about the planet. He wastes so much water. (IF)

___________If Paul thought about the planet, he wouldn't waste so much water.

_________________________________________________________

5. Water pollution happens. Many aquatic animals such as fish can die. (LEAD)

_______Water pollution leads to the death of many aquatic animals such as fish.

_____________________________________________________________

6. The climate is changing. The earth is getting warmer. (BECAUSE)

___________Because the climate is changing, the earth is getting warmer.

_________________________________________________________

7. We should stop cutting down so many trees. We endanger our oxygen supply. (UNLESS)

__________Unless we stop cutting down so many trees, we will endanger our oxygen supply.

__________________________________________________________

8. People begin to recycle. They generate much less trash. (WHEN)

_________When people begin to recycle, they generate much less trash.

___________________________________________________________

9. We are damaging the ozone layer. The ozone layer is necessary for human existence. (EVEN THOUGH)

_________Even though the ozone layer is necessary for human existence, we are damaging it.

___________________________________________________________

10. Sue is suffering from skin cancer. She was exposed to radiation when she was young. (SO)

____________Sue was exposed to radiation when she was young, so she is suffering from skin cancer.

________________________________________________________

1/Hoa will get into so much trouble if she doesnt listen to me

->Unless Hoa listens to me, she will get into so much trouble

2/There will be so many bugs in the room if there isnt a screen on the window

->Unless there is a screen on the window, there will be so many bugs in the room

3/Unless he was busy,he could help them

>If he wasn't busy, he could help them

4/l cant make all of my own meals unless l am good at cooking

->lf I am not good at cooking, I can't make all of my own meals

5/l`m not you,so l cant tell him the truth

-> lf l  were you, I could tell him the truth

6/lf she hadnt come,he would have been disappointed

->Unless she had come, he would have been disappointed

7/he is not a good student so he doesnt study for the test

->lf he were a good student, he would study for the test

8/l dont eat breakfast everyday,so l am hungry now

->If I ate breakfast every day, I wouldn't be hungry now

9/Mai was sick because she didnt follow the doctor`s orders

->lf Mai had followed the doctor's orders, she wouldn't have been sick

10/He will be tired this morning unless he goes to bed early

->lf he doesn't go to bed early, he will be tired this morning

11/She doesnt pay attention to her cooking so the food is horrible

->lf she paid attention to her cooking, the food wouldn't be horrible

12/The weather was very nice so we didnt go camping 

>lf the weather hadn't been very nice, we would have gone camping

Bạn xem lại đề câu này nhé, câu không hợp nghĩa

13/They will fail the exam lf they dont study hard

->Unless they study hard, they will fail the exam

14/She loves him so she forgives him easily

->lf she didn't love him, she wouldn't forgive him easily

15/The teacher praises them because they study well

->lf they didn't study well, the teacher wouldn't praise them

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