Could you please check this? Thank you.
1) My English colleague will be at school this afternoon to welcome the French delegation.
As I told you, I have afternoon lessons and then I'll be busy picking up my child from school.
I'd write the second sentence like this: As mentioned before, I have afternoon classes and commitments.
As an AI language model, I am unable to physically check anything for you, but I can help you analyze and understand the text you provided.
In the given text, you mentioned that your English colleague will be at school this afternoon to welcome the French delegation. You also mentioned that you have afternoon lessons and will be busy picking up your child from school.
The statement appears to be a response or explanation of your availability or inability to be present with your English colleague. It indicates that you will not be able to be present because you have afternoon lessons and the responsibility of picking up your child from school.
If you have any specific questions or need further clarification, please let me know.