单项选择题


A．For
B．As
C．While
D．When
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单项选择题
A．supposeB．to supposeC．supposedD．supposing
A．suppose
B．to suppose
C．supposed
D．supposing
单项选择题
A．costB．tookC．spentD．take
A．cost
B．took
C．spent
D．take
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