1.turn off=>turning off

2.will clean=>will be cleaning

3.will be buying=>will buy

4.starts=>star

5.finding=>found

1 cannot => can

2 receive => to receive 

3 cooked => cook

4 can => can't

5 writes => write

Underline and correct the mistake in each sentence:

1. Robots  cannot=>can clean the floor.

2. My sister will be able receive =>to receive a schoolarship.

3. He coud cooked=>cook many delicious dishes.

4. Because he has a toothache, he can eat anything=>nothing.

5. She can speak English well, but she cannot writes=>write it.

Identify a mistake in each sentence and correct it :

1. Next week new glass will be installing in the windows to stop heat escaping .

will be installing -> will be installed

2. At this time in next two month , we are going to have a free solar panel .

are going to have -> will be having

3. They will be organized a workshop about clean and safe energy sources next Wednesday

Organized -> organizing

4. We will be replacing coal and natural gas for heating by solar energy at the end of next year .

Replacing -> replaced

5. Our house will provide with biogas and low energy light bulbs next month.

Provide -> be provided

EX14. Gạch chân đáp án đúng.

1. I can’t go to Berlin with you and your father can’t (either/ too).

2. I hardly skip breakfast and Jim (doesn’t skip breakfast either/ skips breakfast too).

3. We won’t go sailing tomorrow because of the storm and they (don’t/ won’t) either.

4. I want to be a famous actress in the future and my friemd Sarah (wants/ doesn’t want) it too.

5. They haven’t watched the movie yet and I (haven’t/ doesn’t have) either.

6. I will help my mom do the washing and my brother (will do it too/ don’t do it either).

7. My brother’s just got a new bike and I (have got a new bike too/ am got a new bike too).

8. For me, playing the piano is never easy and playing the guitar (is too/ isn’t either).

9. She is a warm-hearted person but her daughter (isn’t either/ isn’t).

10. Drinking alcohol is harmful to your body and eatung fast food (is harmful too/ isn’t harmful either).

deliverning->delivered

will be->was

play->playing

on->off

am->will be

II. Underline the mistake in the following sentences and then correct it.

1._____but_____ I'd like to play football what I have to finish my homework.

3.____for______I think I've lost my new pen. I've looked after it everywhere and I can't find it anywhere.

2.______or____Would you like a cup of coffee with tea?

4.______off____Would you mind turning on the radio? I have a headache.

5.____of______As population increases or countries industrialize, the world's demand for energy increases.

6._____opposite_____Water and metals conduct electricity, therefore, wood doesn't

7.___go______ If we turn on destroying the forests, there will be big floods every year.

8._____doesn't____ Nam will get wet if he won't take his umbrella.

9. ____well_____John has studied Vietnamese for two years, therefore he speaks Vietnamese very good.

10. ___by_____We can save natural resources with using solar energy instead of coal, gas, and oil.

1.__________ I'd like to play football what=>but I have to finish my homework.

3.__________I think I've lost my new pen. I've looked after=>for it everywhere and I can't find it anywhere. 2.__________Would you like a cup of coffee with=>or tea? 4.__________Would you mind turning on=>off the radio? I have a headache.

5.__________As population increases=>population increase or countries industrialize, the world's demand for energy increases. 6.__________Water and metals conduct electricity, therefore=>but, wood doesn't 8._________ Nam will get wet if he won't=>doesn't take his umbrella. 9. _________John has studied Vietnamese for two years, therefore he speaks Vietnamese very good=>well. 10. ________We can save natural resources with=>by using solar energy instead of coal, gas, and oil

Combine each pair of sentences below to make a conditional sentence-type 1:

1. People use recycled materials. They save energy

If people use recycled materials, they will save energy

2. You save electricity. You turn off computer before leaving the house.

If you turn off computer before leaving the house, you will save electricity.

3. People want to protect the environment. They stop cut down trees.

If people want to protect the environment, they will stop cut down trees.

4. You see a used can in the road. What will you do?

If you see a used can in the road, what will you do?