1 . Will - doing / will listen 

2 can swim / swims 

3 is / to sit 

4 doesn't do / does

5 is flying / is going to land 

1 biggest

2 warmer / hottest 

3 best 

4 longest 

5 noisier 

-----Chúc bạn học tốt nhé -----

I.

1.What will they do tonight? - They will listen to music on the radio.

2.Can your brother swim?- Yes,he can. He swims very well.

3.He is tired and he'd like to sit down.

4.Hoa doesn't do her homeword in the afternoon. She does it in the evening.

5.Look! The plane are flying towards the ariport.It is going to land

II. 

1. Which is the biggest city in Viet Nam ?
2. Spring iswarmerthan Fall. But Summer is the hottest season of a year.
3. Hoa is the best student in our class.
4. The Nile River is the longest river in the world.
5. The city is noisier than the country.