The experiment has ________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets．

found out

pointed out

ruled out

carried out

－I haven't got the reference book yet, but I'll have a test on the subject next month．

－Don't worry．You ________ have it by Friday．

could

shall

must

may

Thousands of foreigners were ________ to the Shanghai World Expo the day it opened．

attended

attained

attracted

attached

－why, Jack, you look so tired!

－Well, I ________ the house and I must finish the work tomorrow．

was painting

will be painting

have painted

have been painting

The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good ________．

expectation

reputation

contribution

civilization

The visitors here are greatly impressed by the fact that ________ people from all walks of life are working hard for ________ new Jiangsu．

不填; a

不填; the

the; a

the; the

It is generally considered unwise to give a child ________ he or she wants．

however

whatever

whichever

wherever

Because of the heavy traffic, it was already time for lunch break ________ she got to her office．

since

that

when

until

If you have a job, ________ yourself to it and finally you'll succeed．

do devote

don't devote

devoting

not devoting

You've failed to do what you ________ to and I'm afraid the teacher will blame you．

will expect

will be expected

expected

were expected