【C5】A．baseB．basedC．basisD．basic

【C4】

A．but

B．otherwise

C．nevertheless

D．still

【C3】

A．influence

B．interrupt

C．effect

D．affect

【C2】

A．presenting

B．to present

C．presented

D．presents

efficiently. Depression,【C1】______the other hand,can raise the risk of dying from heart failure,a separate study found. The two studies,【C2】______at a meeting of the American College of Cardiology in Florida, show how psychological factors can【C3】______a persons health. " We dont recommend that you laugh and not exercise,【C4】______we do recommend that you try to laugh on regular basis. Thirty minutes of exercise three times a week and fifteen minutes of laugher on a daily【C5】______is probably good for the vascular(脉管)system,"said Doctor Michael Miller. Miller and his colleagues at the school【C6】______ two movies, one humorous,【C7】______stressful, to twenty healthy volunteers and tested the function of their blood vessels. The researchers specifically looked at the lining of the vessels and found that blood【C8】______ was reduced in fourteen of the twenty volunteers after stressful movie cuttings. But blood flowed more freely in nineteen of the twenty volunteers【C9】______ they laugh at fun movie segments. Average blood flow increased 22% during laughter,and【C10】______ 35% during mental stress,the researchers told the meeting.

【C1】

A．at

B．on

C．in

D．by

Mr. Green said his clients______our samples by the end of last month.

A．didn"t receive

B．hadn"t received

C．haven"t received

D．don"t receive

l handle.

A．different

B．diverse

C．variable

D．various

I decided to go to the party as soon as I______.

A．would finish what I was doing

B．finish what I did

C．finished what I did

D．finished what I was doing

The Reform. Club proposed that wages______.

A．would be raised

B．were raised

C．would have been raised

D．be raised

That family is always quarrelling______themselves.

A．within

B．between

C．with

D．among

Breakfast in the school canteen usually______egg, bread, and milk

A．consists of

B．is consisted of

C．makes up

D．is included