单项选择题

A．He was smoking a pipe.
B．He was learning to smoke.
C．He was studying a tobacco plant.
D．He was throwing tobacco leaves on a fire.
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单项选择题
A．Chess is a slow game.B．Chess must be played across the table.C．Everyone can enjoy chess.D．Chess takes thought.
A．Chess is a slow game.
B．Chess must be played across the table.
C．Everyone can enjoy chess.
D．Chess takes thought.
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