单项选择题

A．They are friends.
B．They are strangers.
C．They are brother and sister.
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单项选择题
A．Her mother.B．Her sister-in-law.C．Her aunt.
A．Her mother.
B．Her sister-in-law.
C．Her aunt.
单项选择题
A．Once a day.B．Twice a day.C．Three times a day.
A．Once a day.
B．Twice a day.
C．Three times a day.
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