调查显示，近几年我国中学生的健康状况不容乐观,近视眼、肥胖和体质弱等情况比较普遍。请分析造成此状况的原因及其危害，并提出改进措施。

In China,        car is becoming         popular means of transportation.

A．a; the                  B．a; 不填                  C．the; the                 D．the; a

—Where did you get your laptop? I’d like to get one.

—Well, at      shop on Avenue 48, but I can’t say exactly.

A．some         B．any          C．each          D．every

I was halfway back to the hospital where the doctor was working      Susan caught up with me.

A．when          B．while            C．until           D．though

Because of the Russian gas limit to Europe, attempts       to use botanical fuel as a source of power.

A．have made           B．having made          C．are being made          D．will be making

Carbon dioxide      from burning fuels is the most common of the so – called greenhouse gases.

A．producing                                         B．having been produced   

C．to be produced                       D．produced

According to news reports personal         of guns in the USA causes a lot of trouble.

A．wealth                 B．possession                C．matter                 D．problem

—Has Mr. Tom White arrived?

—Yes, already.          he wait outside or just come in?

A．Shall           B．May      C．Could            D．Must

—When will you be through with your work, Jones?

—        ? My boss usually finds something for me to do at the last minute.

A．Who knows                                     B．Would you help me        

C．I beg your pardon                     D．Anything the matter

—Do you like the place of interest?

—On the contrary, it’s the        place that I want to visit.

A．worst          B．last         C．best        D．latest