Writeacher, I'd like you to help me check this paragraph. Thank you.

1) We are urgently looking for an English school, which is interested in a long-term cooperation (??) with our school. We would like to start with an email partnership followed by a student exchange programme.
2) The students involved will be high-achievers belonging to classes ten and eleven.
3) We are all looking forward to receiving a positive reply from your side.

1) We are urgently looking for an English school, which is interested in a long-term cooperative project with our school. We would like to start with an email partnership followed by a student exchange programme.

2) OK

3) We are all looking forward to receiving a positive reply from you.

Sure! I'd be happy to help you check this paragraph. Here are a few suggestions for improvement:

1) We are urgently looking for an English school that is interested in entering into a long-term cooperation with our school. We would like to initiate this partnership through email communication, followed by a student exchange program.

2) The program will involve high-achieving students from classes ten and eleven.

3) We look forward to receiving a positive response from you.

These suggestions clarify the language and make the paragraph read more smoothly. Remember to proofread once more to ensure there are no grammatical or spelling errors.