6. Fill the spaces in the following sentences by using one of these forms + the perfect infinitive of the verbs in brackets. must + perfect infinitive is used for affirmative deductions can't/couldn't + infinitive is used for negative deductions. needn't + perfect infinitive is used for a past action which Was unnecessary but was performed. 31. I had to get down the mountain in a thick fog. ~ That ... (be) very difficult. 32. I saw Ann in the library yesterday. ~ You ... (see) her; she is still abroad. 33. How did he get out of the house? He ... (come) down the stairs for they were blazing. 34. You ... (lend) him your map. He has one of his own. 35. I spoke in English, very slowly. ~ You ... (speak) slowly. He speaks English very fluently. 36. He was found unconscious at the foot of the cliff. He ... (fall) 200 metres.
6. Fill the spaces in the following sentences by using one of these forms + the perfect infinitive of the verbs in brackets. must + perfect infinitive is used for affirmative deductions can't/couldn't + infinitive is used for negative deductions. needn't + perfect infinitive is used for a past action which Was unnecessary but was performed. 31. I had to get down the mountain in a thick fog. ~ That ... (be) very difficult. 32. I saw Ann in the library yesterday. ~ You ... (see) her; she is still abroad. 33. How did he get out of the house? He ... (come) down the stairs for they were blazing. 34. You ... (lend) him your map. He has one of his own. 35. I spoke in English, very slowly. ~ You ... (speak) slowly. He speaks English very fluently. 36. He was found unconscious at the foot of the cliff. He ... (fall) 200 metres.
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I had to get down the mountain in a thick fog. ~ That must have been very difficult.I saw Ann in the library yesterday. ~ You couldn't have seen her; she is still abroad.How did he get out of the house? He must have come down the stairs for they were blazing.You needn't have lent him your map. He has one of his own.I spoke in English, very slowly. ~ You needn't have spoken slowly. He speaks English very fluently.He was found unconscious at the foot of the cliff. He must have fallen 200 meters.
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20 Апр
в 15:22
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