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a hill
a hill
It's going down the hill .
It's going past the house .
It's at the station .
at the station
在车站
station
on the train
at the station
动画2
Where is the train going?
The train is going up a hill.
Where is the train going?
The train is going down a hill.
*
It’s going past a hospital.
Where is the train going?
The cat is going past a tree.
The car is going past a hospital.
hospital
It’s stopping at the station.
火眼金睛：找出学过的像stopping一样的动词ing形式。
swim walking
clap playing
eating watching
listening run
dancing skip
shop reading
ming