单项选择题

The samples______in quality but were generally acceptable.

A．varied
B．changed
C．disagreed
D．exchanged
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单项选择题
It’ s a simple dish to prepare, ______mainly of rice and vegetables.
A．making up
B．composing
C．containing
D．consisting
单项选择题
I told them I was perfectly______to help if they asked.
A．kind
B．interested
C．willing
D．favorable
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