ing分詞的用法

1.（北京) ________in the queue for half an hour, tom suddenly realized that he had left his wallet at home. a. to wait       b. have waited       c. having waited         d. to have waited   2.(上海) according to a recent u.s. survey, children spent up to 25 hours a week ______tv. a. to watch      b. to watch          c. watching             d. watch 3.(上海) the flu is believed _______ be viruses that like to reproduce in the cells inside the human nose and throat. a. causing         b. being caused       c. to be caused       d. to have caused 4.(上海) the  flowers ______ sweet in the botanic garden attract the visitors to the beauty of nature. a. to smell            b. smelling                   c. smelt                       d. to be smelt 5.(天津) don’t leave the water ______ while you brush your teeth. a. run                  b. running                    c. being run                 d. to run  6.(重慶) they see  you as something of a worrier, ______ problems which don’t exist and crossing bridges long before you come to them. a. settling             b. discovering              c. seeing                     d. designing 7.(福建)the news reporters hurried to the airport, only ______ the film stars had left. a. to tell               b. to be told                 c. telling                      d. told 8.(湖南) you were silly not _____ your car. a. to lock             b. to have locked          c. locking                    d. having locked 9.(江蘇) the man insisted _______ a taxi for me even though i told him i lived nearby. a. find                  b. to find                     c. on finding                d. in finding 10.(江蘇) the old man, _______ abroad for twenty years, is on the way back to his motherland. a. to work            b. working                   c. to have worked               d. having worked 1-5 d c a c d 6---10 a c d a b 11---15 b a c b d 16---20 b b c d c 21---25 c c b d b 1—10 cccbb  cbbcd