单项选择题

This book ______ me twenty dollars.

A．is cost
B．was cost
C．cost
D．have been cost
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单项选择题
With regarding to this model of color TV sets, the home-made ones are by no means ______ those made in Japan.
A．less inferior to
B．less inferior than
C．inferior than
D．inferior to
单项选择题
Could you ______ reasons and examples for your answer7
A．qualify
B．quantify
C．specify
D．satisfy
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