把下面句子变成间接引语

1.My mother said to me," I will wait for you after class at the gate."

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2.My English teacher said,"You are a hard-working student."

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3.He asked,"Can I help you?"

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4.The foreigner said,"Where is the nearest bank?"

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5.She said,"Do you agree?"

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有氧训练的常用强度是:()

A．小强度

B．中等强度

C．中等至高强度

D．高强度

E．极量运动