I left out the following sentences on school rules. I really hope you can have a look at them, Writeacher!
1) I'm writing this letter because I would like to tell you some of the rules at my school. I hope you'll do the same.
2) You mustn't change or modify marks on your school report.
3) You should bring money for the snack bar (in case you need to buy a snack at the school cafè).
4) You can look up new words in the dictionary.
5) You should keep your exercise-nook in order.
Shall I use these words in the plural:
leave without our teachers' permission, forge our parents' signature
cheat in exams
copy our classmates' homework
1. This is very wordy. Try this instead:
I'm writing to tell you some of the rules at my school.
2, 3, 4 = OK
5. Do you mean exercise book? No hyphen needed.
All the plurals and plural possessives are fine as long as they are truly plurals. If you know that a student has only one parent, though, be sure to write "parent's" and the same for teacher's/teachers'.
Sure, I'd be happy to help you with those sentences! Here's the revised version:
1) I'm writing this letter to inform you about some of the rules at my school. I would greatly appreciate it if you could also share the rules at your school.
2) It is strictly prohibited to change or modify marks on your school report.
3) It is advisable to bring money for the snack bar in case you need to purchase snacks from the school café.
4) Feel free to consult the dictionary for the meanings of new words.
5) It is important to keep your exercise book neat and organized.
Now, as for the last part of your message regarding words in the plural, here's the revised version:
Shall I use these phrases in the plural:
- leaving without our teachers' permission
- forging our parents' signatures
- cheating in exams
- copying our classmates' homework
These revisions should more accurately convey the intended meaning.