The key to exercise solutions in chapter Unit 1 - Who do you think you are? for the textbook Engage!, Vol. 1 with authors Monica Berlis, Jane Bowie, Heather Jones e Barbara Bettinelli from Pearson Longman
Question
Complete the rules.
Answer
We add -s to the base form with he/she/it.
To make the negative form, we add doesn't before the base form with he/she/it, and don't with I/you/we/they.