问题
选择题
They _ the train until it disappeared in the distance.
A．saw
B．watched
C．noticed
D．realized
答案
答案：B
题目分析：句意：他们看着火车直到它消失在远方。Saw看，看见；watched 观看； noticed注意；realized意识到。所以选B。
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They _ the train until it disappeared in the distance.
A．saw
B．watched
C．noticed
D．realized
答案：B
题目分析：句意：他们看着火车直到它消失在远方。Saw看，看见；watched 观看； noticed注意；realized意识到。所以选B。