X.
1. Lan and Ly is going to bookstore to buy books now.
3. Many plants and ainmals are in danger because we are destroying them.
4. There are some peas but there aren't any potatoes. 
5. She'd like a dozen eggs and some vegetables. 
VIII.
3. Phuong is Nam's sister/brother.
4. This house is the oldest house/one on the street. 
5. How many apples would she like?
6. It is very easy to learn how to use a computer. 
7. He is a careful driver. 
8. How about listening to music tonight?
9. What is the price of this dictionary?
10. It's never cold in the summer.

IX:
1. There is a big yard in front of our school.
2.  Are there many flowers to the right of the museum?
4/ What is there next to the photocopy store? 
5/ My father works in a hospital in the city.