He looks really pale. He must be ill. Did you hear me come in last night? No, I can't have been awake. He used to translate many English novels when he was young; he died yesterday. He must have spoken English very well. I wonder who broke the wineglass; it can't have been the cat for she was out all day. Peter's room is really untidy: books and papers all over the place. He must have been studying all night for his exam. Last year there were floods all over Spain. It must have rained a lot. I had my umbrella when I came out, but I haven't got it now. You must have

1. MUST meaning DEDUCTION or INFERENCE
1. Complete these sentences using MUST or CAN'T and the verbs in brackets. Make the necessary
changes.
1 He looks really pale. He _________________ (be) ill.
2 Did you hear me come in last night? No, I _________________ (be) asleep.
3 He used to translate many English novels when he was young; he died yesterday. He
_________________ (speak) English very well.
4 I wonder who broke the wineglass; it _________________ be) the cat for she was out all day.
5 Peter's room is really untidy: books and papers all over the place. He _________________ (study)
all night for his exam.
6 Last year there were floods all over Spain. It _________________ (rain) a lot.
7 I had my umbrella when I came out, but I haven't got it now. You _________________ (leave) it on
the bus.
8 Your children are always making a lot of noise. They _________________ (be) really naughty.
9 It _________________ (rain) so much. The ground is not wet.
10 He spends one hour to get to work. He _________________ (live) very far from here.
11 Last night I left my radio on. I _________________ (be) very sleepy.
12 I saw a tiger in my neighbour's garden. You _________________ (see) one. There aren't any round
here.
13 This book is very thick. It _________________ (take) a long time to write it.
14 He is back from work already. He _________________ (start) very early.