根据课文补全对话。
1. A: Can you ___________ ___________ on the ice?
B: I ___________ I can ___________ ___________。
B: Yes! Look! I'm ___________!
A: Good!
2. A: Can you skate forwards?
B: I ___________ I can.
A: Can you skate ___________?
B: I ___________ I can.
A: Good!