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Complete the sentences with the correct form, gerund or infinitive, of the words in parentheses. 1.   He wore glasses                            (avoid)            (be) recognized. 2.   Before (give)                    evidence you must swear (speak)                               the truth. 3.   I tried (persuade)                          him (agree)                             with your proposal. 4.   Your windows need (clean)                     .Would you like me (do)                    them for vou. 5.   Would you mind (shut)                            the window? I hate (sit)                     in a draught. 6.   I can’t help (sneeze)                     ; I caught a cold yesterday because of (sit)          in a draught. 7.   Stop (talk)                         ; I am trying (finish)                           a letter. 8.   His doctor advised him (give)                              up (jog)                       . 9.   My watch keeps (stop)                             . 10. People used (make)                                  fire by (rub)                            two sticks together.

Xem chi tiết 5.1 K lượt xem 8 tháng trước

Fill in future continuous or future perfect to complete the sentences below. 1.   This time tomorrow morning Captain Neil Armstrong and his crew                        (leave) earth and                           (head) for the planet Mars. 2.   On the first day of their voyage, they                               (orbit) the earth every 20 seconds. 3.   Crew members Yuri Gagarin and Sally Ride                               (check)all the instrument all day long to make sure they are working properly. They                           (not/take) it easy. 4.   By the end of the year 2044 they                                      (arrive) on the planet Mars. They                (go) 100 million light years andyet they                    (not/age) even one year. Miraculous! 5.   What                                 (do/they) about as they zip through space? Will theybe frightened? I doubt it. They will be too busy. 6.   The captain says that by the end of the first week, they                     (discover)many interesting things about space and alien beings. 7.   By the end of the first month aboard the spaceship, the Martian Explorer, the crew                                     (get used to) living without gravity and to eating theirfood out of tubes. On a normal day they                           (float) around the cabin. 8.   Scientists claim that within the next 50 years, they                                 (find out)whether life on Mars exists or not and they                                (meet) those littlegreen men, Martians. 9.   In the meantime, let us wish good luck to Captain Armstrong and his crew. They                              (explore) the outer reaches of the universe. 10. By 2044                            (they/expand) our knowledge of new frontiers and deep space.

Xem chi tiết 7.1 K lượt xem 8 tháng trước

Put the verbs in brackets into the correct tense. 1.   In 1543, Nicolaus Copernicus (publish)                          “On the Revolutions of the Heaven Spheres” claiming that the Earth and the planets (orbit)                             the Su. 2.   Galileo (use)                                 the telescope to view the stars and planets before Isaac Newton (invent)                                   the first reflecting telescope. 3.   In 1686, Isaac Newton (publish)                                     the Mathematical Principlesof Natural Philosophy where he (lay)                                the foundations for universalgravitation and (describe)                                       the motion of the Sun and the planets. 4.   After Robert Goddard (work)                              on the rocket technology, he(invent)                               and (launch)                          the first liquid-fueled rocket in 1926. 5.   On November 3, 1957, the Russian dog Laika (become)                        the first animal in orbit after fruit flies (be sent)                                to outer space by the United States. 6.   In 1983, Sally Ride (become)                              the first American woman inspace after Russian cosmonaut Valentina Tereshkova (be sent)                             in space twenty years earlier. 7.   France (launch)                            its first satellite before Japan(put)                      its test satellite into orbit. 8.   In 1971, the United Kingdom successfully (launch)                               its satellite into orbit after China (do)                              that one year earlier.

Xem chi tiết 2.1 K lượt xem 8 tháng trước

Put the verbs in brackets into the correct tenses of the conditionals. 1.   If we (take)                      , the children (not go)                         for a walk. 2.   If she (not read)                           the novel, she (not pas)                                 the literature test. 3.   If I (not argue)                             with my friend, he (lend)                              me his motorbike. 4.   If we (take)                      the bus, we (not arrive)                                 in time. 5.   If Dick (not buy)                          the book, his friends (be)                               angry with him. 6.   If Tom (not tidy up)                                his room, Victoria (not help)                  him with the muffins. 7.   If the boys (not play)                               football, the girls (not come)                  to the football pitch. 8.   If you (eat)                       too much junk food, you (not lose)                      weight. 9.   If I (not make)                             breakfast tomorrow morning, my girlfriend (not love)                                  me anymore. 10. If they (not hurry)                                   , they (not catch)                                the train.

Xem chi tiết 2.5 K lượt xem 8 tháng trước