Many students have great difficulty using the letter s correctly, my students do it all the time. I also find there are not so many good resources out there for this topic considering it's a biggie. So here's a resource to help and practice, with a gap fill exercise about a family who have naughty monkeys as their kids. Not all gaps are to be filled. Instructions, rules and examples are on the page. 

uses-of-the-letter-s-story-gap-fill-weird-family-grammar-guides_126046.docx

Present simple tense: S for third person singular verbs

Uses of the letter S. Story gap fill Weird Family

uses-of-the-letter-s-story-gap-fill-weird-family

Many students have great difficulty using the letter s correctly, my students do it all the time. I also find there are not so many good resources out there for…