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Sound sleep occurs when one.s internal clock is regulated.Circadian rhythms(生理节奏

For some time past it has been widely accepted that babies and other creatures l

Football is the most popular sport in the fall in the United States.The game ori

There are 15 incomplete sentences in this section.For each sentence there are fo

Directions:Pick out the appropriate expressions from the eight choices below and

Early this year,Captain Startup was flying an aeroplane over New Zealand.There w

A college education is an investment in the future.But it can be a costly invest

Directions:This part is to test your ability to do practical writing.You are req

The flying fox is not a fox at all.It is an extra large bat that has got a fox.s

In our online life,we need to use passwords frequently.We use passwords 21 e-mai

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My mother knows Jane.Theyto each other at a party.A.have been introducedB.are in

He had to quit the jobhis ill health.A.asB. as forC.becauseD.because of

Seldomany mistakes during my past five years of service in the company.A.I did m

He is already an hour late.I don.t think he willcome,A.do IB. will heC. won.t he

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As protector of her family.s health,the poineer woman confronted situations she

conflict among city-states caused the eventual decline of Greek civilization.A.C

When John left the office,Amyat her desk.A.is still workingB.has still workedC.w

The most impressive sight in China,one of the wonders of the world,the GreatWall

in thought while driving,he almost ran into the car coming in the opposiledirect

The heart isintelligent than the stomach,for they are both controlled by the bra

Is this the factoryyou visited the other day?B.thatC.whereD.whenA.what

The old man went to the information center soon after his arrival as the cityso