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—Be quick, _______ we’ll be late for the class. —Ok, I’m coming.

A. but              B. or       C. so             D. and

--- Be quick, ______ we’ll be late for the class.

--- Ok, I’m coming.

A. but　　　　 B. or　　 　　　　　　 C. so　　　 　 D. and

--- Be quick, ______ we’ll be late for the class.

--- Ok, I’m coming.

A．but              B．or               C．so               D．and