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 _______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.

A. As               B. That            C. This       D. It

On the chairs _________ , who had come to Dalian looking for jobs.

A．three young men sat           B．sat three young men

C．did three young men sit           D．three young men sitting

The Internet has made it possible ______ in a very convenient way around the world.

A. for people to communicate            B. for people communicating

C. for people communicate                     D. for people to be communicated

The consequences of our actions are unbelievably complicated and diverse _______ predicting the future is a very difficult business indeed.

A. because     B. even if                  C. in order that                 D. so that

The traffic is heavy these days. I ________ arrive a bit late, so could you save me a place?

A. can’t          B. must         C. need            D. may

_________ to 100℃, water will boil.

A. Being heated     B. Heated          C. Heating          D. To heat

--- Will you waste your time and money on that? 

 --- Certainly ________.

A. I not      B. don’t         C. not      D. no

—Americans spend more on health care than most other people .

— You’re right . But a new study shows that life      in the United States is falling .

A. development     B. position      C. experience     D. expectancy

Before use, your new mobile must fully____.

A. get charged                         B. become charged

C. remain charged                      D. turn charged

Her son,to whom she was so_____,went abroad ten years ago.

A.concerned         B.cared          C.devoted      D.loved