Unit 1 Will people have robots？ 1
Unit 2 What should I do？ 20
Unit 3 What were you doing when the UFO arrived? 39
Unit 4 He said I was hard-working 53
Unit 5 If you go to the partyyou'll have a great time！ 74
Unit 6 How long have you been collecting shells？ 90
Unit 7 Would you mind tuing down the music？ 106
Unit 8 Why don't you get her a scarf？ 122
Unit 9 Have you ever been to an amusement park? 141
Unit 10 It's a nice day，isn't it？ 159
参考答案 177