一、用 be 或 be not 的适当形式填空。
1. There a pair of socks under the bed.
2. There three cups of tea on the desk.
3. There any tigers in the forest.
4. There five pandas and a monkey in the zoo.
5. There some rice on the table.
6. There no toy horses in the box.

1. is 2. are 3. aren't 4. are 5. is 6. are