I phần C :

1) Nha Trang is one of the most important tourist hubs of Viet Nam.

2) They are in the city and on islands of the coast.

3) Yes , it is

4) The city's cuisine famous for its fresh sea food .

5) Yes , they can

II phần D :

1) Ho Chi Minh city is the biggest city in Viet Nam.

2) The air in the area is polluted because of the smoke from the factories .

I

1) Nha Trang is one of the most important tourist hubs of Viet Nam.

2) They are in the city and on islands of the coast.

3) Yes , it is

4) The city's cuisine famous for its fresh sea food .

5) Yes , they can

II

1.Ho Chi Minh City is the biggest city in Vietnam

2.The air of the area are polluted by smoke from the factories