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【参考答案】

in addition helping 改为 in addition to helping
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单项选择题
A．In a doctor’s office.B．In a professor’s office.C．In a lawyer’s office.D．In a businessman’s office.
A．In a doctor’s office.
B．In a professor’s office.
C．In a lawyer’s office.
D．In a businessman’s office.
填空题
lively 改为 live
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