目录：
Lesson 1 He is wearing a blue T－shirt.
Lesson 2 How can we do it?
Lesson 3 It’s cold in Harbin.
Lesson 4 Sally is going to Beijing.
Revision 1
Lesson 5 Can I help you?
Lesson 6 Beijing is a great city.
Lesson 7 We had a good time!
Lesson 8 It’s time to say goodbye.
Revision 2
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