Bài 1
1. have
2. is
3. has
4. are
5. has
6. am
7. have
Bài 9
1. Are there many trees in the park?
2. The bank is next to the house.
3. There is a big house behind my garden.
4. How many students are there in Lan's school?
5. Is there a house in front of your small yard?