104.Only after his father saw the train disappear in sight（ ）the railway station.

21.Before the final examination, some students have shown（ ）of tension.

20.The judge（ ）the murderer to twenty years in prison.

19.They say the new film is a(n)（ ）picture so they won’t go to see it.

18.If you want to see the chairman of the department, you’d better make an（ ）with his secretary first.

17.A good teacher always tries to（ ）students to ask question.

16.He has（ ）much time and energy for his invention.

15.For the sake of his mother’s health, he decided to move to a warmer ( ).

14.The doctor tried to do some experiments to find out the （）of the medicine.

13.—— Congratulations! You won the first prize in today’s English speech contest.—— （ ）

12.—— May I take your order now?—— （ ）