问题
句型转换
认真看一看例子，变换句子。
例：This is one/a pencil.
These are pencils.
1. This is a stamp.
2. This is a dress.
3. This is a dish.
4. This is a bus.
答案
1. These are stamps.
2. These are dresses.
3. These are dishes.
4. These are buses.