单项选择题

A．Because they ail work very hard.
B．Because their teachers are all native speakers of English.
C．Because they learn not only in class but also out of class.
D．Because they are all advanced students.
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单项选择题
A．He will lose weight quickly.B．His weight will remain unchanged.C．He will lose some weight during his diet.D．He will gain weight during the next few months.
A．He will lose weight quickly.
B．His weight will remain unchanged.
C．He will lose some weight during his diet.
D．He will gain weight during the next few months.
单项选择题
A．I-20.B．Green visa.C．F-1 visa.D．F-2 visa.
A．I-20.
B．Green visa.
C．F-1 visa.
D．F-2 visa.
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