单项选择题

Don't put off till tomorrow ______ you can do today.

A．that
B．what
C．when
D．whether
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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
It is the business of the police to prevent and detect crime and of the law courts to punish ______.
A．crime
B．sin
C．offence
D．fault
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