EAP 140 AM - WANG, Lingshan - Week 9 1/4

Today I reviewed something about preposition.  The preposition at is used before a specific time. The preposition in is used before a geographic location. The preposition before a noun indicating the edge of something is at. The preposition before a noun indicating a target is at. The preposition in is used before a noun indicating an enclosed space.The preposition before a specific day is on. 

e.g.  
1）  My family will arrive at 10:30 a.m. in this Saturday.
2）  I find an bird in my house.
3）  My grandmother usually sits at the table and do some housework.
4）  At the end of the TV show, all the people have a happy ending.
5）  In the box, we find a letter from a girl who named Tina.
6）   I hope everything will be okay on my wedding day.