单项选择题

A．By prediction.
B．By recording.
C．Through observation.
D．Through interviewin
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单项选择题
A．She could help him with the problems.B．He should go out for a while.C．She could go out together with him.D．He should do the problems himsel
A．She could help him with the problems.
B．He should go out for a while.
C．She could go out together with him.
D．He should do the problems himsel
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