24．―Be careful. you will make mistakes in your exams． ―I know that.Mum．One can never be too careful． A．a(chǎn)nd B．or C．nor D．but 【查看更多】

 

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一Be careful ,     you will make mistakes in your exams. 

—I know that，Mum. One can never be too careful.

A．a(chǎn)nd

B．or

C．nor

D．but

 

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