16.There are forty students in my class. =>My class has forty students.

17.The flower garden is in front of the house. =>The house is behind the flower garden.

1. We usually ride to school. => We usually go to school by bike.

2. The school is big. =>It is a big school.

3. Apple juice is her favourite drink. =>She likes apple juice best.

21.How many oranges do you want? =>How many oranges would you like?

1. How much is a bowl of noodles? =>How much does a bowl of noodles cost?

2. There are many students in our class. => Our class has many students.

3. Why don't we sing an English song? =>What about singing an English song?

25.My sister cycles to the supermarket. =>My sister goes to the supermarket by bike.

26.the country is great. =>It's a great country.

1. The girls are beautiful. =>They're beautiful girls.

28.The Amazon River is longer than the Mekong River. => The Mekong River is shorter than the Amazon River.

1. Minh is shorter than Nam. =>Nam is taller than Minh.

2. Miss White is younger than Mrs. Green. => Mrs. Green is older than Miss White.

Here are the completed sentences:

1. My class has forty students.
2. The house has a flower garden in front of it.
3. We usually go to school by bike.
4. It is a big school.
5. She likes apple juice best.
6. How many oranges would you like?
7. How much does a bowl of noodles cost?
8. Our class has many students.
9. What about singing an English song?
10. My sister goes to the supermarket by bike.
11. It's a great country.
12. They're beautiful girls.
13. The Mekong River is shorter than the Amazon River.
14. Nam is taller than Minh.
15. Mrs Green is older than Miss White.