填入适当的介词，完成句子
1. Alice usually goes ________ the cinema ________ her parents.   
2. The headmaster will wait ________ the entrance.   
3. What do you usually do ________ the Open Day?   
4. Let's look ________ the English Club noticeboard.   
5. ________ 5:20 they will start their party. 
6. —Who are you waiting ________?—Mr Black. I have something important to tell him.   
7. Let's meet our teacher ________ the school gate.