单项选择题

The ______ of the flood, which caused thousands of people to lose their houses, was 3 weeks of torrential min.

A．source
B．origin
C．root
D．resource
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单项选择题
It is due to the invention of the computer that man has been able to work so many wonders in the past few years. A case ______ is the successful launching of space shuttle.
A．in point
B．in question
C．in a way
D．in brief
单项选择题
The match was cancelled because most of the members ______ a match without a standard court.
A．objected to having
B．were objected to have
C．objected to have
D．were objected to having
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