单项选择题

Being colour-blind, Sally can’’t make a_______between red and green.

A．difference
B．distinction
C．comparison
D．division
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单项选择题
______ something should go wrong, what would you do then
A．Supposing
B．Supposed
C．To be supposed
D．To suppose
单项选择题
Beer is the most popular drink among male drinkers, ______ overall consumption is significantly higher than that of women.
A．whose
B．which
C．that
D．what
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