The __________ of the flood, which caused thousands of people to lose their houses, was 3
A. source
B. origin
C. root
D. resource
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It is due to the invention of the computer that man has been able to work so many wonders
A. in point
B. in question
C. in a way
D. in brief
The business centre at the hotel
A. organizes the food during a conference.
B. is a self-service facility for copying and faxing.
C. recruits temporary secretaries during conferences.
D. has soft lighting so guests can relax.
正确答案是（）
A. inflating
B. expanding
C. increasing
D. extending
正确答案是（）
A. Hence
But
C. Even
D. Only
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