[单项选择]In previous time, when fresh meat was in short __________, pigeons were kept by many households as a source of food.
A. storage
B. reserve
C. supply
D. provision

[单项选择]In previous times, when fresh meat was in short ______ , pigeons were kept by many households as a source of food.
A. store
B. provision
C. reserve
D. supply

[单项选择]The lecture seemed to have （　） only a short time, although the clock said it had gone on for more than an hour.
A. cost
B. lasted
C. spent
D. passed

[单项选择]That he got there within such a short time was a ______ to me.
A. wonder
B. miracle
C. marvel
D. surprise

[单项选择]Three years ______ a short time. You have to study hard.

[单项选择]With such a short time ______ it doesn't seem likely that we will finish the job.
A. leave
B. leaving
C. leaves
D. left

[单项选择]He ______ Tokyo, for I saw him a short time ago.

[单项选择]Strange things happen to time when you travel because______.
A. no day really has twenty-four hours
B. the earth is divided into time zones
C. time zones are not all the same size
D. no one knows where time zones begin

[单项选择]

There was a time when parents who wanted an educational present for their children would buy a typewriter, a globe or an encyclopedia set. Now those (21) seem hopelessly old-fashioned: this Christmas, there were a lot of (22) computers under the tree. (23) that computers are their key to success, parents are also frantically insisting that children (24) taught to use them on school— as early as possible.
The problem for schools is that when it (25) computers, parents don’t always know best. Many schools are (26) parental impatience and are purchasing hardware without (27) educational planning so they can say,"OK, we’vr moved into the computer age. "Teachers (28) themselves caught in the middle of the problem — between parent pressure and (29) educational decisions.
Educators do not even agree (30) how computers should be used. A lot of money is going for compu
A. relied on
B. relaxed
C. freed
D. found