[单项选择]It's quite ______ me why such things have been allowed to happen.
A. for
B. behind
C. against
D. beyond

[单项选择]Many theories have been ______ as to why some women suffer from depression.
A. referred to
B. put forward
C. rest assured
D. left out

[单项选择]All of the plants now raised on farms, have been developed from plants （）wild.
A. once they grew
B. they grew once
C. that once grew
D. once grew

[单项选择]

 Please make sure all items have been（） from the desks before the new employees arrive next week.
 

A. removed
B. remove
C. removes
D. removing

[单项选择]I have been trying to quit smoking.
A. give up
B. pick up
C. build up
D. take up

[单项选择]The plant products have been carefully inspected and are considered to be ( ) from any quarantine pests.
A. out
B. away
C. free
D. far

[单项选择]Americans have been criticized for placing too much （　） on being on time.
A. emphasis
B. activity
C. bother
D. assistance

[单项选择]Major manufacturers have been using "quality circle" with undeniable success for more them two decades.
A. 100 years
B. 20 years
C. 50 years
D. 10 years

[单项选择]The selection says that spiders have been discovered ______.
A. five miles above earth
B. more than 2000 feet underground
C. everywhere that man has reached
D. both A and B

[单项选择]What actions have been take by the government

[单项选择]Their relationships with their parents have been so ______ that they are no longer able to communicate.


A. restless
B. distant
C. tight
D. strained

[单选题]题目 53
--How often do you have a school trip this term? -- ( ).Since several accidents happened to some schools, all the outdoor activities have been asked to stop.
A. Always
B. Hardly ever
C. Sometimes
D. Often

[单项选择]—Excuse me, have you ever been to Switzerland
—______. But many people say it's a very beautiful country.

[单项选择]Several scientists have been sent to that forest to ______ the wildlife there.

[单项选择]

The 1990s have been designated the Decade Against Drug Abuse by the United Nations. But, (1) less than three years to go before the end of the decade, governments and health organizations (2) that they have made (3) progress in reducing drug, alcohol and tobacco abuse. Today, consumption of all these substances is increasingly steadily worldwide. (4) every country now has problems with (5) drugs. And the world is producing and consuming more alcohol and tobacco than ever. Between 1970 and 1990 beer production (6) rose by over 80 per cent. And, (7) the number of smokers keeps on (8) ,by the second or third (9) of the next century there could be 10 million deaths each year (10) smoking related illnesses.
Drugs are also a huge burden (11) the world economy. In the United States, for example, it’s estimated that alcohol and illegal drug use costs the country tens of billions of dollars each yea
A. alone
B. only
C. lonely
D. just