请将下列句子单复数互换。1. This is a butterfly.
___________________________________________
2. Those are white sheep.
___________________________________________
3. This is her child.
___________________________________________
4. These apples are big.
___________________________________________
5. That is a gray mouse.
___________________________________________
试题答案
1. These are butterflies.
2. That is a white sheep.
3. These are her children.
4. This apple is big.
5. Those are gay mice.