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

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

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

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