18. Some of the students have already learned enough English to ____ a conversation with a native English speaker.

A. hold on      B. keep on      C. go on         D. carry on

19. — I hope you enjoyed the film last night.

  — How on earth do you know I went to a film? I _____ you.

  A. won’t tell        B. didn’t tell       

C. haven’t told      D. hadn’t told

19. _____, I think, and the problems could be settled.

A. If you double your efforts

B. So long as you keep up your spirits

C. Making greater efforts

D. A bit more efforts

18. Only _____ as an interpreter _____ how important it was to practise speaking English.

A. when did I work…I realized

B. when did I work…did I realize

C. when I work…did I realize

D. when I worked…did I realize

It was with great delight that I read in your February _____ the letter to the Editor written by Prof. Johnson.

          A. issue       B. printing      C. magazine    D. copy

Thank you for      the trouble      me with the work.

A. having; helping      B. taking; helping

C. taking; to help      D. having; to help

13. Whether we’ll hold the sports meet depends on the weather, _____?

A. won’t we               B. shan’t we

C. doesn’t it             D. won’t it

No one helped me . I did it all _____ myself

A．for          B．by           C．from          D．to

When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.

A．went  B. had gone  C. has gone  D. was going