This is a two-page worksheet, I find doing the second page first is easier for students since it tells them exactly which type of pronoun to use. I tried to make the sentences as easy for children to understand as possible and kept the plurals more obvious on the first page. I use this for young students, probably 8-9 years old who have been learning English for about a year or so.
Personally, I change the names every semester to match the names of the students who will be doing the sheet. It makes it much easier for them to understand which gender pronoun to use (since gender pronouns are so annoying). Since this is a .docx it is fully modifiable and nothing is locked down.
I am pretty sure I adapted this from somewhere but it has been modified so much that I figured I would upload it.