Exercises: The Present Perfect Simple
Complete the following, using verbs from the box:
| put | travel | win | have | invent | learn (2) | spend | cross | build |
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| 1) | Since 1969 astronauts to the moon several times. | |
| 2) | Since 1901 many famous scientist Nobel Prize for Physics, Chemistry. | |
| 3) | Medical experts enough information to cure diseases by the use of antibiotics only since the Second Word War. | |
| 4) | The Russian and the Americans several spacecraft into orbit around Mars in the last twenty years. | |
| 5) | Since Alcock and Brown´s flight in 1919, millions of people the Atlantic by plane. | |
| 6) | In the century scientists many new electronic devices, such as radio, television and computers. | |
| 7) | For instance, many countries nuclear power stations which they use to provide electricity. | |
| 8) | Doctors how to cure many diseases during the last hundred years. | |
| 9) | In the twentieth century we how to use nuclear energy in many different ways. | |
| 10) | Medical associations millions of dollars on research into cancer, but it is still a major cause of death. | |
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