The boy is playing with his toy train.(小男孩在玩他的玩具火車。)

Daddy, can I buy that toy train?(爸爸，我能買那輛玩具火車嗎？)

I'd like a toy train.(我想要一個玩具火車。)

Oh, a toy train.(一輛玩具火車。)

John bought a toy train for his son yesterday.(昨天約翰給他兒子買了輛玩具火車。)

The children are playing with a toy train.(孩子們正在玩一列玩具火車。)

This is a toy train.(這是一個玩具火車。)

May I see your toy train?(我可以看一下你的玩具火車嗎？)

My favorite toy is a toy train.(我最喜歡的玩具是玩具火車。)

B. Is that her toy train?(你有一輛玩具火車嗎？)