单项选择题

The main purpose of the research is________.

A．to make preparations for a new publication
B．to learn how couples spend their weekends
C．to know how housework is shared
D．to investigate what people do at the weekend
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单项选择题
What is the probable relationship between the two speakers
A．Salesman and customer.
B．Doctor and nurse.
C．Doctor and patient.
D．Patient and patient.
单项选择题
A bride can ________if she finds her marriage gift useless.
A．ask for another gift
B．exchange it for something useful
C．return it to the giver
D．just keep it
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