11_JUSTICE_WB (2) (Grammar)

Possibility, speculation and deduction 7 Complete the sentences with the words in the box.could must may might can’t 1 Jenny had a motive for killing him so she could be the murderer.2 Nicola’s been working all night so she must be exhausted.3 Sam likes detective stories so she could have the Stieg Larsson novels.4 Rob occasionally visits his sister in the evenings so he could be at her house.5 All the office lights are turned off so Tim can’t possibly be at work. 8 Complete the sentences with a modal perfect and the correct form of the verbs in brackets. 1 I’m not sure how the burglar entered the house, but he could have got in through the window.2 The fridge was open and there was food on the floor. The burglar must have eaten some of our food.3 I’m amazed he didn’t find our jewels! He can’t have looked very carefully for them.4 The neighbour saw a man running away.It could have been the burglar, but we’re not sure. 10 Circle the correct alternatives.1 A: I failed the maths exam.B: But it was really easy. You … studiedvery hard. a can’t have b might have c must have 2 I’m not sure where Ali is. He … with hissister. a must be b might be c can’t be 3 A: Has she been living in England for long?B: Well her English is excellent, so she … been here for a long time. a may had b must have c might 4 A: This food’s great!B: Really? You … like it much becauseyou’ve hardly eaten anything. a mustn’t b might not c can’t 5 Liz hasn’t arrived yet. She … got caught inthe traffic. The roads are busy today. a can’t have b must have c should have 11 Complete the dialogue with an appropriatemodal verb. Mark I heard you had to do jury service last year. Is that right?Tess Yes. Why do you ask?Mark Because I'll have to do it next month.Can you give me any advice?Tess First of all, you must / have to ask questions to make sure you understand everything. But you mustn’t interrupt the judge.Mark Right. And do I have to take notes?Tess No, you don’t have to take notes, but I think you should take them because it will help you to remember things.MarkWhat was the trial about?TessWell, it was a robbery trial and there were two defendants, a man and a woman. I knew the man must have committed the robbery as there was lot of evidence against him. At first I thought the woman could / may / might have done it too, but I wasn’tsure. Then, some new evidence showed that she couldn’t have committed the crime, as she wasn’t in the town at the time.MarkAnd weren’t you nervous before the trial?TessYes, I was, but I needn’t have worried. Everything worked out fine in the end.