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?                                 

      Mrs. Smith has two daughters. Let's have a look at what chores they do at home.
     "①Alice started doing chores when she was about eight years old. At that time, she did the dishes
with ②me together and ③she has to sweep the floor. She is ten years old now. She is now doing the
dishes herself and has to do the laundry, too."
      "Amy is four and she started doing chores this July. ④She cleans the table after dinner, and she also
learns to fold her own clothes. She likes to help me sweep. I asked her to help mop (拖地), but she fell
down too many times. And ⑤有时候她也帮助她姐姐. Her work is usually not perfect (完美的)."
      "Last week Alice got her pocket money, but lost it two days later. She didn't do her chores the next
two days. She will get the money back if she can keep doing her chores every day till the end of this
month." 
1. 将划线句子①改为同义句。
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2. 写出划线代词②对应的人物。
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3. 划线句子③中有一处错误，请改正。
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4. 将划线句子④译成汉语。
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5. 将划线句子⑤译成英语。
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