—Must I turn off the gas after cooking?

—Of course.You can never be ________careful with that.

A．enough B．too C．so D．very

 

B

【解析】B　[You can never be too careful with that.或You can never be careful enough with that.意為“你越仔細越好，你無論怎么仔細都不過分”。]

 

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