WRITING CORRECTION CODES

Hello again, In class we have seen different writing correction codes.
Look at the following board:

SYMBOL	KIND OF ERROR		EXAMPLE		CORRECT SENTENCE
Sp	Spelling mistake		My freind is here.		My friend is here.
W.O	Word order		I like very much music.		I like music very much.
Gr	Grammar		You’re gooder than me at maths. She talked to he in the pub.		You’re better than me at maths. She talked to him in the pub.
A	Article ( a, the)		I like the cheese.            A		I like cheese.
Prep	Preposition		Don’t laugh of me.                     Prep.		Don’t laugh at me.
L.W	Linking Word		There was no bus, although she walked home.		There was no bus, so she walked home.
W.F	Word form		She Works slow.                     The exercise is bored.		She Works slowly. The exercise is boring.
T	Wrong tense		Last week I’ve been to Madrid.		Last week I was to Madrid.
( )	Word not needed. Delete		I’m going (to) shopping.		I’m going shopping.
P	Wrong punctuation		She said yes thank you.		She said: “Yes, thank you”.
!!!	Very serious mistake		I is angry. I have 21 years old.		I am angry. I’m 21 years old.
[     ] s    s	Sentence is too long.
-----} -----}	Alternative word or expression		I go {home         to my house} after school.		Both sentences are correct.
M		Missing word		As our plane flew over the mountains __ saw snow.
RW		Try re-writing		Our vehicle flies, we snow find, over mountains you saw it.