单项选择题

You'd better write down her number and address () you should need them.

A. unless
B. in case
C. on condition that
D. if only

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单项选择题
The number of tigers in this area ()said to be().

A. is; rising
B. are; rising
C. is; raised
D. are; raised
单项选择题
What shall we use for power when all the oil in the world has been ().

A. given out
B. put out
C. held up
D. used up
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