单项选择题

A．By prediction.
B．By recording.
C．Through observation.
D．Through interviewing.
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单项选择题
A．Mary’s boss.B．Mary’s brother.C．Mary’s husband.D．Mary’s oldest son.
A．Mary’s boss.
B．Mary’s brother.
C．Mary’s husband.
D．Mary’s oldest son.
单项选择题
A．Wednesday.B．Thursday.C．Friday.D．Saturday.
A．Wednesday.
B．Thursday.
C．Friday.
D．Saturday.
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