90.The gray building is where the workers live, and the white one is where the spare parts（ ）.

35.The scientists are trying to find out the facts to（ ）their theory.

34.The old houses are being pulled down to（ ）a new office building.

33.One of the best ways for people to keep fit is to（ ）healthy eating habits.

32.—— Take these medicines three times a day, Peter?—— Do I have to take them? They（ ）so terrible.

31.I have been looking forward to（ ）from my old friends.

30.The modern camera lens may be coated with more than ten（ ）for each piece of its glass.

29.Mary has never been（ ）a ship.

28.When he woke up from his dream, the frightened boy tried to（ ）his mothers arm.

27.She is narrow minded and always（ ）what other people have.

26.Now the patient can（ ）from the wheelchair to the seat with relative freedom.