11.This university has _______ a great deal since our last visit.
12.She is narrow minded and always _______ what other people have.
13.When he woke up from his dream, the frightened boy tried to _______ his mother’s arm.
14.Mary has never been _______ a ship.
15.The modern camera lens may be coated with more than ten _______ for each piece of its glass.
16.The thief was _______ by the police at the railway station.
17.In fact, there is no _______ liberty in any country.
18.There is too much noise outside. I can not _______my attention on my work.
19.While studying at U.C.L.A.,Mr.Wang _______ his old friend, whom he has not seen for nearly twenty years.
20.The _______ production of engines in our factory has doubled this year.
11.B 12.D 13.C 14.B 15.C
16.C 17.B 18.D 19.A 20.B