Make the sentences interrogative and negative.
1. Mary can ski. ________________?______________________.
2. We can swim._________________?_____________________.
3. They ride on a sledge.____________________?________________________.
4. It drinks milk._____________________________?______________________.
5. I am singing.___________________________?

1. Mary can't ski. Can Mary ski?

2. We can't swim. Can we swim?

3. They don't ride on a sledge. Do they ride on a sledge?

4. It doesn't drink milk. Does it drink milk?

5. I am not singing. Am I singing?