单项选择题

A．Because they all work very hard.
B．Because their teachers are all native speakers of English.
C．Because they learn not only in but also out of class.
D．Because they are all advanced students.
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填空题
Visitor’s nationality:______
单项选择题
A．Their working place is too far away from their families.B．Their families can not support them.C．Living independently is considered an important American value.D．American young people are forced to live independently.
A．Their working place is too far away from their families.
B．Their families can not support them.
C．Living independently is considered an important American value.
D．American young people are forced to live independently.
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