_____________rules are there in your class?—Let me see, one, two, three… so many.[ ]

My aunt has a nice house _____ many trees and flowers around it.[ ]

The students are looking forward to having an opportunity ________ society for real-life experience.

The government of Yancheng is building_________cheap and good houses for the people.

I have （有）_____ ruler and ____ eraser.