20. ---------I reminded you not to forget the appointment with the house agent.

　 ---------- _____　 ,but I was caught in a traffic jam.

A　 So you did　　 B　 So I did　　 C　 So did you　　 D　 So did I

19.Jay Chou,a young singer,is quite popular ______the public.

He’s made a remarkable achievement ______a boy of his age.

A with ,to　　 B to ,for　　 C with ,for　　 D for ,to

18.Experience will_______if you are active in doing the field work frequently.

A attain　 B accumulate C collect　 D advance

17. ______I’ll be away on business .who do you advise _____the child at home?

　 _____How about your mother?

A attend　 B to attend　 C attending　 D attended

16. ______to carry out the plan in time,they will make careful preparations.

　 A Determine　 B Having been determined　 C Determined　 D Being determined

15.The entire cost of South-to –North project will be more than_____that of the Three Gorges project,which is expected to cost below us $ 22 billion.

　A double　 B　 twice as many as　 C twice than　 D as much as twice

14.The meeting________because of the heavy rain,many officers went home in a hurry.

A was cancelled　 B had been cancelled　 C having been cancelled　 D having cancelled