问题
改错题
下列各句均有错误，请改正。
1. This is a book. A book is Mary's.
2. 你多大了？You are how old?
3. — 你是林涛吗？— 是的。
— Are you Lin Tao? — Yes, I'm.
4. Is Changjiang River very long?
答案
1. 将A book改为The book。
2. 将You are how old？改为How old are you?
3. 将I'm改为I am。
4. 在Changjiang River之前加the。