A container weighs more after air is p...

填空题A container weighs more after air is put in , it proves that air has weight.
A. A
B. weighs
C. is put in
D. it

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1.填空题After her two-week vacation was over , Dorothy regretted to spend so much money for so little pleasure .
A. After
B. was over
C. to spend
D. so little pleasure

参考答案：C(spending)

2.填空题For married mothers, the time spend on child care increased to an average of 12.9 hours a week in 2009.
A. For
B. spend
C. increased
D. an average

参考答案：B(spent)

3.填空题Who has eyes can see what great achievements we have made since 1978.
A. Who
B. has eyes
C. what great achievements
D. have made

参考答案：A(Whoever)

4.填空题We solved the problem by using a computer rather than to do it all by hand .
A. by using
B. rather
C. to do
D. by hand

参考答案：C(did)

5.填空题Many parents feel they need to keep a closer eye to their children because of concerns about crime and school violence.
A. need to
B. to
C. because of
D. about

参考答案：B(on)

6.填空题How and why this language has survived for more than a thousand years, while spoke by very few, is hard to explain .
A. How and
B. has
C. spoke
D. to explain

参考答案：C(spoken)

7.填空题I invited Joe and Linda as well as Tom to dinner , but neither of them came.
A. invited
B. as well as
C. to dinner
D. neither

参考答案：D(none of)

8.填空题When you"ve finished with that book, don"t forget to put it back on the shelf, won"t you
A. finished
B. don"t
C. to put it back
D. won"t you

参考答案：D(will you)

9.填空题The workers in the factory demanded that their pay would be raised by 20 percent.
A. The workers
B. demanded
C. would be
D. by

参考答案：C(be)

10.填空题The Great Wall is so a well-known tourist attraction that millions of people pour in every year.
A. The
B. so
C. tourist attraction
D. millions

参考答案：B(such)

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