Unit 1 What's the matter?
Section A
Section B
单元总结
Unit 2 I'll help to clean up the city parks.
Section B
单元总结
Unit 3 Could you please clean your room?
Section A
Section B
单元总结
Unit 4 Why don't you talk to your parents?
Section A
Section B
单元总结
Unit 5 What were you doing when the rainstorm came?
Section A
Section B
单元总结
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