Preposition at, in, and on used as Place and Time

Do you want to master the using of preposition at, in, on?
You may click the link below.
The link below is made by my students at SMK Tunas Bangsa Tawangsari Sukoharjo Class X.

http://www.facebook.com/notes/darwoto/class-xtsm2/211212625576701

http://www.facebook.com/notes/darwoto/class-xtkr2/211212498910047

http://www.facebook.com/notes/darwoto/class-xtkr1/211212302243400

Prepositions of Place - AT, ON, IN

Prepositions of Time

Thank you so much, Your English Teacher,  Darwoto, S.Pd.