unit 1 how do you study for a test?unit 2 i used to be afraid of the dark.unit 3 teenagers should be allowed to choose their own clothes.unit 4 what would you do?unit 5 it must belong to carla.综合练习(一)unit 6 i like music that i can dance to.unit 7 where would you like to visit?unit 8 i'll help clean up the city parks.unit 9 when was it invented?unit 10 by the time i got outside, the bus had already left.综合练习(二)unit 11 could you please tell me where the restrooms are?unit 12 you're supposed to shake hands.unit 13 rainy days make me sad.
