This is a B1 level worksheet on business e-mails. Students will read a chain of emails between a customer and a supplier, learn how to be more formal in emails, learn commonly used formal synonyms in e-mails, practice making polite questions, and write their own emails. This worksheet contains a lot of good B1 business English vocabulary, and will work well with any business orientated class at or around the B1 level.
Some other useful worksheets on this subject:
Quick and Easy English