【题目】选词填空,补全短文。
up down past at on
up down past at on
The train is (1) __________ the station. Now the train is going (2) __________ the hill. Now the train is going (3) __________ the school. Now the train is going (4) __________ the hill. Now the train is going (5) __________ the hospital.
【答案】(1) at (2) up (3) past (4) down (5) past
【解析】
略