单项选择题

Cowries shells were once in widespread use as a token of value.

A. a symbol
B. an amount
C. a thing
D. an investment
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单项选择题
How many universities have sent invitations to President Bush this year
A. As many as 18.
B. Less than 18.
C. A few more than 18.
D. At least 18.
单项选择题
A. To stay at home. B. To sleep. C. To see a movie. D. To go to a party.
A. To stay at home.
B. To sleep.
C. To see a movie.
D. To go to a party.
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