单项选择题

I can' t really ______ taking another day off work since I' m already away from office for three days.

A．justify
B．modify
C．simplify
D．identify
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单项选择题
He could not account ______ his foolish mistakes.
A．of
B．on
C．about
D．for
单项选择题
So far as English ______ , the truth of If A then B simply points out the fact that in England everybody speaks English.
A．concerns
B．concerned
C．is concerning
D．is concerned
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