单项选择题

The word "institution" (line 1 ) most probably means ________.

A．a social practice
B．a social organization
C．a state law
D．an established habit
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单项选择题
The percentage of remarriage among divorced Americans is ________.
A．fifty percent
B．eighty percent
C．forty percent
D．ninety percent
单项选择题
In the United States ________.
A．marriage is less popular than divorce now
B．remaining single is becoming more and more popular now
C．divorce is as popular as it was
D．remarriage is getting more popular now
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