Use the perfect infinitive of the verbs in brackets with a suitable modal verb.

1. Jack: I've finished.

Ann: But you were only half way through when I went to bed. You (work) all night!

2 The instructions were in French. I translated them into English for
him.-

You (not translate) them. He knows French.

3 Tom: What's happened to Jack? We said 7.30 and now it's 8.00 and
there's no sign of him.

Ann: He (forget) that we invited him. He is rather forgetful. I (telephone) him yesterday to remind him. (It was foolish of me not to telephone.)

4 Tom: Or he (get) lost. He hasn't been to this house before. I (give)
him directions. (I didn't give him directions, which was stupid of me.)
Ann: Or he (have) a breakdown or a puncture.

Tom: A puncture (not delay) him so long.

5 Ann: Or he (stop) for a drink and (get) involved in an argument.
Jack's arguments go on for hours!

Tom: Or he (run) out of petrol. Perhaps we'd better go and look for him.

6 You (not feed) the bears! (It was foolish of you to feed them.) Now they'll be angry if the next campers don't feed them too.

7 Nobody has been in this house for a month. ~

Nonsense! Here's last Monday's paper in the wastepaper basket; somebody (be) here quite recently.

8 Two of the players spent the night before the big match at a
party. ~

That was very foolish of them. They (go) to bed early.

9 He says that when walking across Kensington Gardens he was
attacked by wolves. ~

He (not be attacked) by wolves. There aren't any wolves in Kensington. He (see) some Alsatian dogs and (think) they were wolves.

10 I waited from 8.00 to 8.30 under the clock and he says he waited from 8.00 to 8.30 under the clock, and we didn't see each other! -You (wait) under different clocks! There are two in the station, you know.

11 He set off alone a month ago and hasn't been heard of since. ~ He (fall) into a river and (be eaten) by crocodiles. ~

Or (be kidnapped) by tribesmen. ~ Or (catch) fever and (die) of it.

12 We (start) yesterday (this was the plan); but the flight was cancelled because of the fog, so we're still here, as you see.

13 Mary to Ann, who has just toiled up six flights of stairs: You (not walk) up! You (come) up in the lift. It's working now.

14 I left my car here under the No Parking sign; and now it's gone. It (be) stolen! - Not necessarily. The police (drive) it away.

15He had two bottles of Coke and got frightfully drunk. -He (not get) drunk on Coke. He (drink) gin with it.

16 He was riding a bicycle along the motorway when he was hit by the trailer of a lorry. These big lorries are very dangerous. ~ Perhaps, but Paul (not ride) a bicycle along the motorway; bicycles are not allowed.

17 I've lost one of my gloves! -

The puppy (take) it. I saw him running by just now with something in his mouth. It (be) your glove.

18 We've run out of petrol! -

I'm not surprised. I noticed that the tank was nearly empty when we left home. ~

You (tell) me! We (get) petrol at the last village. Now we've got a 10-mile walk!

19If the ground hadn't been so soft the horse I backed (win) instead of coming in second. He never does very well on soft ground.

20I've written to Paul. ~

You (not write). He's coming here tomorrow. You'll see him before he gets your letter.

21 They (build) a two-storey house (this was the original plan), but money ran out so they built a bungalow instead.

22If the dog hadn't woken us we (not notice) the fire for several hours, and by that time it (spread) the house next door.

23Why didn't you wait for me yesterday? ~
I waited five minutes. ~

You (wait) a little longer!

24 How did Peter get here? -

He (come) on a motorcycle. (This is a possibility.)-He (not come) on a motorcycle. He doesn't ride one. — He (come) as a pillion passenger.

25 (Alice, staying at a hotel for the first time, carefully washes up the
early morning tea things.)

Mother: You (not do) that. The hotel staff do the washing up.

26 Why are you so late? You (be) here two hours ago!

27 Mrs Smith: I've cooked scrambled eggs for Mr Jones, because of his diet, and steak and onions for everyone else.

Mr Jones: You (not cook) anything special for me, Mrs Smith; I'm not on a diet any longer.

28 If I'd known we'd have to wait so long I (bring) a book. ~ If I'd known it was going to be so cold I (not come) at all!

29 Tom (looking out of the window): Fortunately that teapot didn't hit anyone, but you (not throw) it out of the window, Ann! You (kill) someone.

30 Look at this beautiful painting! Only a very great artist (paint) such a picture! -

Nonsense! A child of five (paint) it with his eyes shut.

31 I wonder how the fire started. ~

Oh, someone (drop) a lighted cigarette. Or it (be) an electrical fault. ~

32 You don't think it (be started) deliberately?-

Well, I suppose it (be). (It is possible.) But who would do a thing like that?

33 There is only one set of footprints, so the kidnapper (carry) his prisoner out. He not (do) it in daylight or he (be) seen. He (wait) till dark.

34 I went with him to show him the way. -

You (not do) that. (That wasn't necessary.) He knows the way.

35 Then an enormous man, ten feet tall, came into the ring. -He (not be) ten feet tall really. He (walk) on stilts.

36 He jumped out of a sixth-floor window and broke his neck. ~ You say 'jumped'. It (not be) an accident? —

No. The window was too small. It (be) deliberate.

11. Read the description of the following situations and say what the people should/must/could … (not) have done and what may/must … happen in future.

a) It was Sunday yesterday and Mike took his father’s car without permission to go to a disco. At the disco he had too much beer and on the way home he skidded as he was driving too fast and had a minor accident. However, he managed to return home unnoticed. Naturally, he didn’t tell anybody at home about what had happened. Now it is Monday evening. Mike’s father has just returned home and he looks very angry.

b) Oscar took his friends for a drive in his car. They went about 30 miles along a highway and stopped at a service station. Oscar entered a fast-food restaurant which was nearby to get some food. When he came out his car wasn’t there. His friends had disappeared too.