Complete the sentence using the  preposition 
1 he meet us.....the gate of the examination hall.
2 They waited....... the bell was sounded.
3 She come home......sunset.
4 The solider marched....the pared  ground.
5 We often go for holiday...... our school vacation.
6 We walk quietly ...... sandy shore of the sea.
7 The cow ate hay..... the pile kept in the bark