用所给词的适当形式填空。 1. On the ______________(on

问题：

用所给词的适当形式填空。

1. On the ______________(one) floor, there are six classrooms.

2. This is ______________(I) school. It's very big.

3. You can use a ______________(shop) basket in the supermarket.

4. ______________(open) the door, please.

5. Cats don't like______________(play) with dogs.