Напишите 6-8 предложений на тему: what are the main rules of writing a formal letter?

Why are you shouting? i was writing an english exercise at this time yesterday. my little sister was sleeping at this time yesterday. my friends were not doing their homework at 7oclock yesterday. they were playing volleyball. she was reading the whole evening yesterday. were you drinking tea at this time yesterday? - no. i was not drinking tea at this time yesterday. my sister is fond of reading. she was reading the whole evening yesterday. i was sleeping when she came home. she is not reading now.

1. charles dickens is one of the most famous writers in the world. 2. this story is more interesting than that one. 3. is your house higher than ours? no, it is as high as yours. 4. this picture is the best in the collection. 5. the russian federation is bigger than great  britain. 6. he finished(did) the job quicker than you. 7. the more you work-the easier it is to pass the exams. 8. his work is better than yours, but ann's work is the best. 9. russia is the biggest country in the world. 10. i live not as far from the institute as my friend. 11. there are as many days in july as in august. 12. a plane is faster than a  train.