The students at my school can ( do/have/study ) quietly in the library in the afternoon

1.The students at my school can ( do/have/study ) quietly in the library in the afternoon
2.My grandma (plays/does/studies ) morning exercise every day.
3.we don't usually ( play/have/study ) homework on Saturday.
4.do you often ( play/do/have ) team games during the break ?
5.i have two tests tomorrow,but i don't have much time to ( do/have/study )
 6. on our school 's farm,there are a lot of things for us to ( play/do/have ) at weekends.