介词填空:They are ( ) the station. They are waiting ( ) the train.

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介词填空:They are ( ) the station. They are waiting ( ) the train.

介词填空:They are ( ) the station. They are waiting ( ) the train.
介词填空:They are ( ) the station. They are waiting ( ) the train.

介词填空:They are ( ) the station. They are waiting ( ) the train.
at
for

on for on the station wait for sb 均为固定搭配