They      _ the train until it disappeared in the distance.
#52422
A
saw
B
watched
C
noticed
D
realized
推荐题目
—What are you doing, Jack? —I am _______ my schoolbag, but I can’t find it. 
#58747
A
looking for
B
looking after
C
looking
D
looking like
 ________, 90% of the money ____ hers.
#54860
A
In our surprise, is
B
To our surprise, is
C
To our surprises, are
D
To me surprise, is