333.A ________may be given ____means of flags, lights, and guns.

A. sign; by　 B. signal; in　 C. signal; by　　 D. sign; in

332.Seeing the man on the bike with a boy at the front and the other at the back, the policeman signed _______stop.

A. to the man　　　　　　　　　　 B. to the man to

C. for the man for　　　　　　　　 D. to the man for

331.Deaf people talk ________.

A. with signs　 B. with sign language　 C. by signs　　 D. by speaking sign language

330.A dark cloud is a _______of rain.

A. sign　　　 B. signing　　　 C. mark　　 D. signature

329.Since advertising can increase sales of production, _____it can _____the price.

A. so; reduced　 B. so; reduce　　 C. /; be reduced　 D. / ; reduce

328.– What are you advertising ______?

---________. I need a place to stay at.

A. for; The house　　　　　 B. to; A house

C. for; A flat　　　　　　　 D. to; A room

327.– Do you have any idea which to choose?

--- Well, you’d better take this one. It’s ______in price and good in quality.

A. lower　　 B. cheaper　　 C. high　　　 D. higher

326._____of modern agriculture, more and more waste is produced.

A. With the development　　　　 B. With the developing

C. By the development　　　　　 D. By the developing

325.We have 24 offices, each ____computers.

A. is equipped with　　　　　　 B. equipped by

C. is equipped by　 　　　　　　D. equipped with

ABCDA　 CADAD　 ABCDB　 AABCD

324.A man may be known ______- he keeps.

A. by the man　　　　　　　 B. by the woman

C. by the company　　　　　 D. the firm