单项选择题

A．Because low-tar cigarettes are cheaper.
B．Because low-tar cigarettes reduce the risk to their health.
C．Because cigarette manufacturers have produced a lot of low-tar cigarettes.
D．Because the government advised people to buy low-tar cigarettes.
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单项选择题
A．Because the dinner will be over in an hour.B．Because he is iii and waiting for an operation.C．Because he is attending his parents.D．Because he has an urgent patient to deal with.
A．Because the dinner will be over in an hour.
B．Because he is iii and waiting for an operation.
C．Because he is attending his parents.
D．Because he has an urgent patient to deal with.
单项选择题
A．She types well.B．She is English.C．She is good at languages.D．She used to be a school teacher.
A．She types well.
B．She is English.
C．She is good at languages.
D．She used to be a school teacher.
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