[单项选择]A ______ from every person, no matter how small, will help the Red Cross reach the goal of $ 100,000.
A. contract
B. contribution
C. concentration
D. construction

[单项选择]A ______ from every person, no matter how small, will help the Red Cross reach the goal of $ 100,000.
A. contract
B. contribution
C. concentration
D. construction

[单项选择]If you walk fast for 30 minutes every day, how many calories will be used for one week
A. 100.
B. 700.
C. 1,400.
D. 200.

[单项选择]Since you take a rest every twenty minutes, how can you expect to make others work for three hours without any stop
A. 虽然你可以每二十分钟才休息一次，但怎么才能使别人持续工作三小时不休息呢
B. 由于你二十分钟休息一次，所以不要希望别人持续工作三小时不休息吧
C. 你每二十分钟就休息一次，又怎么能指望着让别人连续工作二小时不休息呢
D. 既然你自己每二十分钟就休息一次，你再怎么希望让别人连续工作三小时不休息呢

[单项选择]How could Dennis distinguish between a small ball and a large ball from a distance of 3 feet The large ball would produce ______.
A. a sharper sound
B. a softer sound
C. a higher-pitched sound
D. a louder sound

[单项选择]Because Susie earns a small sum of money every month, she cannot rent a large {{U}}apartment{{/U}}.
A. department
B. villa
C. flat
D. shed

[单项选择]How many salmon were there every spring in British Columbia's rivers four years earlier
A. 1.3 million.
B. About 524,000.
C. About 1,824,000.
D. Above 2,000,000.

[单项选择]

In every British town, large and small, you will find shops that sell second-hand goods. Sometimes such shops deal mostly in furniture, sometimes in books, sometimes in household goods, sometimes even in clothes.
The furniture may often be "antique" and it may well have changed hands many times. It may also be very valuable, although the most valuable pieces will usually go to the London salerooms, where one piece might be sold for hundreds of thousands of pounds. As you look around these shops and see the polished(擦亮的) wooden boxes and tables, you can’t help thinking sadly of those long—dead hands which polished that wood, of those now—closed eyes which once looked at these pieces with love.
The books, too, may be antique and very valuable; some may be rare first printings. Often when someone dies or has to move to a new place his books may all be sold, so that sometimes you may find whole libraries in one shop. On the border be
A. may have had many former owners
B. is on sale mainly in London salerooms
C. has usually been polished before being sold
D. has usually been rejected

[单项选择]Every Monday morning when I am in my small office, I wish I ______ in a multi-national company.
A. were working
B. have worked
C. am to work
D. work

[单项选择]Every chemical change either results from energy being used to produce the change or causes energy to be ______ in some form.
A. given off
B. put out
C. set off
D. used up