1． A new system of quality control was brought in to overcome the defects in the firm’s products.
A) invested B) introduced C) installed D) insisted
2. The old concerns lose importance and some of them vanish altogether.
A) develop B) disappear
C) link D) renew
3. There is always excitement at the Olympic Games when an athlete breaks a previous record of performance.
A) beats B)matches
C) maintains D)announces
4. The government is debating the education laws.
A) discussing B) defeating C) delaying D) declining
5. They had a far better yield than any other farm miles away around this year.
A) goods B) soil
C) climate D) harvest
6. The city has decided to do away with all the old buildings in its center.
A) get rid of B) set up
C) repair D) paint
7．During the past ten years there have been dramatic changes in the international situation.
A) permanent B) powerful
C) striking D) practical
8． It is out of the question that the inspector will come tomorrow.
A) impossible B) possible C) probable D) likely
9．Techniques to employ the energy of the sun are being developed.
A) convert B) store C) use D) receive
10． Since the Great Depression, the United States government has protected farmers from damaging drops in grain prices.
A) slight B) surprising C) sudden D) harmful
11． Cement was seldom used in building the Middle Ages.
A) crudely B) rarely C) originally D)occasionally
12． Medicine depends on other fields for basic information, particularly some of their specialized branches.
A) conventionally B) obviously C) especially D) inevitably
13．We were astonished to hear that their football team had won the champion.
A) amazed B) amounted C) amused D) approached
14． There is an abundant supply of cheap labor in this country.
A) a steady B) a plentiful C) an extra D) a stable
15． The most crucial problem any economic system faces is how to use its scarce resources.
A)puzzling B) difficult C) terrifying D) urgent