Unit 1 Will people have robots? 1
Unit 2 What should I do? 12
Unit 3 What were you doing when the UFO arrived? 24
Unit 4 He said I was hard-working. 34
Unit 5 If you go to the party，you'll have a great time! 44
Unit 6 How long have you been collecting shells? 53
Unit 7 Would you mind turning down the music? 63
Unit 8 Why don't you get her a scarf? 76
Unit 9 Have you ever been to an amusement park? 85
Unit 10 It's a nice day，isn't it? 92
Keys 104