C. haven't seen D. hadn't seen

9.No language stays the same. All languages develop and change ________ time.

A. in B. on

C. for D. over

10.Can computers completely take the place of human beings ________？No one can tell.

A. by the end B. at the end

C. in the end D. until the end

11.The part that she ________ in the film made her famous.

A. played B. put C. treated D. got

12.As soon as we heard the boy shouting for help, we rushed to his ________ and pulled him out of the river.

A. shelter B. rescue C. disaster D. outline

13.The pop music ________ our enjoyment of the film.

A. added up to B. added up

C. added to D. added on

14.The composition is good, ________, there is room for improvement.

A. so B. instead C. rather D. however

15.-Great! I love French coffee!

　- Er. It's German ______.

A. really B. truly C. actually D. completely

16.________the number of cars, he thought, there were not many people at the club.

A. He judged by B. Judged from

C. Judge by D. Judging from

17.Judging by her ______， Mrs Smith must be a southerner.

A. pronunciation B. accent C. voice D. sound

18.-I have some big news for you. You've been accepted as a member of our club.

-　　　　That's great!

A. Have I? B. Pardon?

C. Congratulations! D. Good idea!