6.Shanghai World Financial Centre is higher than Keangnam Tower.

->Keangnam Tower is …shorter than SHWF……..

7.In summer, Da Nang is hot but Vinh is hotter.

->In summer, Vinh is……hotter than DN………….

8.It is wrong of us to throw rubbish.

->We mustn’t………throw rubbish……. .

9.It is necessary for us to be present at the class discussion on Saturday.

->We must……be present at the class discussion on Saturday.………… .

10.Ha Noi is large, Bangkok is larger and Tokyo is the largest.

->Tokyo is  the three cities……of largest……………

Shanghai World Financial Centre is higher than Keangnam Tower

-> Keangnam Tower is shorter than Shanghai World Financial Centre.

In summer Da Nang is hot but Vinh is hotter

-> In summer Vinh is hotter than in Da Nang's.

It is wrong of us to throw rubbish

-> We mustn ' t throw rubbish.

It is necessary for us to be present at the class discussion on Saturday

-> We must present at the class discussion on Saturday.

Ha Noi is is large , Bangkok is larger and tokyo Is the largest

-> Tokyo is the largest of the three cities.

1. Denis is more generous than Patrick - he always pays for the drinks!

2. He mustn't practice the piano tonight. He is not very good.

3. She left without closing the door.

4. It's not easy to learn a language.

5. He is very good at talking to new people.

1 to => for

2 practises => practise

3 close => closing

4 learning => learn

5 talk => talking

Exercise 2: Underline and correct ONE mistake in each sentence

1. Denis is more generous than Patrick - he always pays -> pay to the drinks!

2. He mustn’t practises -> practise the piano tonight. He is not very good.

3. She left without close -> closing the door.

4. It’s not easy to learning -> learn a language.

5. He is very good at talk -> talking to new people.

1 to => for

2 practices => practice

3 close => closing

4 learning => learn

5 talk => talking

1. They are slower and more careful writers than us.

=> They write more slowly and carefully than us.

2. Other oceans in the world aren't as large as the Pacific one.

=> The Pacific Ocean is the largest ocean in the world.

3. The Eiffel Tower is as high as an 81-storey building. (same)

=> The Eiffel Tower has the same height as an 81-storey building.

1 , in -> on

2 , Do -> Does

3 , tower -> towers

4 , city -> cities

5 , is -> are

6 , more busy -> busier 

7 , big -> bigger

8 , do -> does

9 , at -> in

10 , because -> so

Exercise 2 . Underline one mistake in each sentence and correct it.

1. I live on  the twenty-one  floor of City Tower.

=> in

2. Do your brother  live in a small house?

=> Does 

3. There are two high tower  near my house.

=> towers

4. Ha noi is one of the most beautiful city in Viet Nam.

 => cities 

5. These cities is large and busy.

=> are

 6. Living in a big city is  more busy than living in the countryside.

=> busier 

7.  This building is big than that one.

=> bigger

8. What do your hometown ? – it is beautiful.

=> does

9. My best friend, Lisa s living at the mountains.

=> in

10. It is a nice and big  city, because I want to live there.

=>  so

I. Complete the sentences with the correct form of the adjectives.

1. The Great Wall of China is the world's (long) ................LONGEST....... structure.

2. The Me kong River is (long) .............LONGER........... than the Red River.

3. Mexico City is (big) ............BIGER............. than Tokyo.

4. Ho Chi Minh city is the (big) .............BIGEST.......... city in Viet Nam

5. China has the (big) ...............BIGEST........... population in the world.

6. The Nile River is the (long) .............LONGEST.............. river in the world.

7. Fansipan is the (high) ..........HIGHEST............ mountain in Viet Nam.

8.Buri Khalifa in Dubai is the world's (tall)...........TALLEST.......... building.

9. Russia is the (big) ..............BIGEST......... country in the world.

10. Petronas Twin Towers in Kuala Lumpur is (tall) ............TALLER........ than Sears Tower in Chicago.

1.longest

2.longer

3.bigger

4.bigest

5.biggest

6.longest

7.highest

8.tallest

9.biggest

10.taller

1. The Great Wall of China is the world's (long) longest structure.

2. The Me kong River is (long) longer than the Red River.

3. Mexico City is (big) bigger than Tokyo.

4. Ho Chi Minh city is the (big) biggest city in Viet Nam

5. China has the (big) biggest population in the world.

6. The Nile River is the (long) longest river in the world.

7. Fansipan is the (high) highest in Viet Nam.

8.Buri Khalifa in Dubai is the world's (tall) tallest building.

9. Russia is the (big) biggest country in the world.

10. Petronas Twin Towers in Kuala Lumpur is (tall) tallest than Sears Tower in Chicago.

1 isn't thành aren't 
2 more thành as
3 like thành as
4 than thành from 
5 either thành too 
chúc bạn học tốt nha

1 isn't thành aren't 
2 more thành as
3 like thành as
4 than thành from 
5 either thành too 

1. kaengnam tower is not as high as Shanghai world financial centre

2.In summer, vinh is the hottest

3.We mustn't throw rubbish

4..We must be present at the class discussion on saturday

5. Tokyo is the largest of the three cities