KEY TO EXERCISES KEY TO EXERCISES 8 washed 9 's/has visited 10 hasn't come 20.4 1 Did you have was 2 Have you seen ■ went haven't seen 3 has worked / has been working was worked didn't enjoy 4 've/have seen 've/have never spoken Have you ever spoken met UNIT 21 21 3 4 5 Glass is made from sand. Stamps are sold in a post office. This room isn't used very often. 6 Are we allowed to park here? 7 How is this word pronounced? 9 The house was painted last month. 10 Three people were injured in the accident. 11 My bicycle was stolen a few days ago. 12 When was this bridge built? 13 Were you invited to the party last week? 14 How were these windows broken? 15 1 wasn't woken up by the noise. 21.2 2 Football is played in most... 3 Why was the letter sent to 4 ... where cars are repaired. 5 Where were you born? 6 How many languages are spoken ... 7 ... but nothing was stolen. 8 When was the bicycle invented? 21.3 3 is made 4 were damaged [270] 5 was given 23.3 6 are shown 2 Did 7 were 7 were invited 3 were 8 Has 8 was made 4 was 9 did 9 was stolen ... was found 5 Has 10 have 6 did 21.4 2 Sally was born in Birmingham. 23.4 3 Her parents were bora in 2 was 6 've/have Ireland. 3 Have 7 is 4 I was born in ... 4 are 8 was 5 My mother was born in ... 5 were 9 has 23.5 I UNIT 22 ■ 3 eaten 8 understan 22.1 4 enjoying 9 listening 5 damaged 10 pronounc 2 A bridge is being built. 6 use 11 open 3 The windows are being cleaned. 7 gone away 4 The grass is being cut. 22.2 3 The window has been broken. 4 The roof is being repaired. 5 The car has been damaged. 6 The houses are being knocked down. 7 The trees have been cut down. 8 They have been invited to a party. 22.3 3 has been repaired 4 was repaired 5 are made 6 were they built 7 Is the computer being used (or Is anybody using the computer) 8 are they called 9 were blown 10 was damaged ... hasn't been repaired 24.1 3 4 ■hoi 23.1 3 are 4 Does 5 Do 6 Is 23.2 2 don't 3 'm/amnot 4 isn't 5 don't 7 do 8 Is 9 does 10 Are got brought 5 paid 6 enjoyed 7 bought 8 sat 9 left 10 happened 11 heard 12 put 13 caught 14 watched 15 understood 24.2 2 3 4 5 6 7 began begun ate eaten drank drunk drove driven ran run spoke spoken written come known taken gone given thrown forgotten 8 wrote 9 came 10 knew 11 took 12 went 13 gave 14 threw 15 forgot 6 doesn't 7 'm/amnot 8 aren't 24.3 3 slept saw rained lost... seen stolen 8 went 9 finished 10 built 11 learnt/learned 12 ridden 13 known 14 fell ... hurt 24.4 told won met woken up swam 8 spoken 9 cost 10 driven 11 sold 12 flew 7 thought 25.1 2 He used to play football. 3 She used to be a taxi driver. 4 They used to live in the country. 5 He used to wear glasses. 6 This building used to be a hotel. 25.2 2-6 She used to play volleyball. She used to go out most evenings. / She used to go out in the evenings. She used to play the guitar. She used to read a lot. / She used to like reading. She used to go away two or three times a year. / She used to travel a lot. 25.3 3 used to have used to be go used to eat watches 8 used to live 9 get 10 did you use to play UNIT 26 26.1 2 Richard is going to the cinema. 3 Barbara is meeting Dave. 4 Denise is having lunch with Ken. 5 Tom and Sue are going to a party. 26.2 2 Are you working next week? 3 What are you doing tomorrow evening? 4 What time are your friends arriving? 5 When is Liz going on holiday? 26.3 Example answers: 3 I'm going away at the weekend. 4 I'm playing basketball tomorrow. 5 I'm meeting a friend this evening. 6 I'm going to the cinema on Thursday evening. 26.4 3 She's getting 4 are going ... are they going 5 finishes 6 I'm not going 7 I'm going... We're meeting 8 are you getting ... leaves 9 does the film begin 10 are you doing ... I'm working 27.1 2 I'm going to buy a newspaper. 3 We're going to play football. 4 I'm going to have a bath. 27.2 3 'm/am going to walk 4 's/is going to stay 5 'm/am going to eat 6 're/are going to give 7 's/is going to lie down 8 Are you going to watch 9 is Rachel going to do 27.3 2 The shelf is going to fall (down). 3 The car is going to turn (left). 4 He's/He is going to kick the baU. 27.4 Example answers: 1 I'm going to phone Ann this evening. 2 I'm going to get up early tomorrow. 3 I'm going to buy some new clothes tomorrow. UNIT 28 28.1 2 she'll be 3 she was 4 she'll be 5 she's 6 she was 7 she'll be 28.2 Example answers: 2 I'll be at home. 3 I'll probably be in bed. 4 I'll be at work. 5 I don't know where I'll be. 28.3 2 'll/will 3 won't 4 won't 5 'll/will 6 'll/will 7 won't 28.4 3 I think we'll win the game. 4 I don't think I'll be here tomorrow. 5 I think Sue will like her present. 6 I don't think they'll get married. 7 I don't think you'll enjoy the film. 28.5 2 are you doing They're going she'll lend I'm going will phone He's working Will UNIT 29 29.1 2 I'll send 3 I'll eat 4 I'll sit 5 I'll do 6 I'll stay 7 I'll show 29.2 2 I think I'll have 3 I don't think I'll play 4 I don't think I'll buy 29.3 2 I'll do I watch I'll go is going to buy I'll give Are you doing ... I'm going [271]