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Future Perfect

23. In this exercise you have to use will have done (Future Perfect)

Example: Tom and Ann are going to the cinema. The film begins at 7.30 and it is already 7.20. And it will take them 20 minutes to get there. When they get there, (the film / already / start) the film will have already started.

1 Jim always goes to bed at 11 o'clock. Tom is going to visit him at 11.30 this evening. When Tom arrives, (Jim / go /to bed).................................................................................................

2 Tom is on holiday. He has very little money and he is spending too much too quickly. Before the end of his holiday, (he /spend / all his money)……………………………………………………….

3 Chuck came to Britain from the US nearly three years ago. Next Monday it will be exactly three years since he arrived. Next Monday (he / be / here / exactly three years)……………………………….

24. Use the following future perfect verb groups to complete the sentences below.

1. You may be in love with her now, but in a couple of weeks you ……… all about her. 2. By the time we get to Birmingham we ……… over two hundred miles. 3. If they start school at four, most children ……… to read and write by the age of six. 4. By the end of this century, we ………… most of the world's oil supplies. 5. After two hours, the leading competitors …………. about thirty kilometres.

25. Re-write the following sentences putting the verbs that are in brackets into the Future Perfect Tense:

1 By the end of the year I (read) two books of Essential English. 2 I (finish) this work before you go away. 3 By this time next week you (take) your examination. 4 We (leave) Mr. Priestley's house before it gets dark. 5 In 1960 George Bernard Shaw (be) dead for ten years. 6 I hope it (stop) raining before we have to go. 7 He (finish) the building of the house before summer. 8 The birds (fly) away before the winter comes. 9 Next Easter Mr. Priestley (teach) foreign students for twenty-five years. 10 Before I see you again I (be) to Paris. 11 I hope you (not forget) all about the Future Perfect Tense by the next lesson.

26. What will life be like in the year 2100? Complete the sentences using Future Perfect. Example: By 2100, the world's population will have increased (increase) to around 30,000 million.

1 Life ………. (become) more automated by then. 2 Computers …….. (take over) many of the jobs that people do today. 3 The earth's supplies of oil, coal and gas …….. (run out). 4 (scientists | find) other sources of energy? 5 How………education ……….. (change)? 6 (we | find) a way to feed all the people in the world?

27. By what time will these things have happened? Example: Scientists / discover / a cure for cancer. / Scientists will have discovered a cure for cancer by the end of a century.

1 Scientists / learn / to control the weather. 2 Third world war/break out 3 Man/destroy/the planet. 4 World population/grow/to three billion. 5 Atomic energy/replace/oil and coal 6 Scientists / buiId / factories in space.