Answer:
4)
eat => eating => it is eating
ride => riding => They are riding
sit => sitting => She is sitting
use => using => We are using
run => running => He is running
stay => staying => You are staying
write => writing => I’m writing
study => studying => She is studying
cut => cutting => They are cutting
5)
1. Katie is drinking juice.
2. Jake and Molly are talking.
3. Sophia is eating pizza.
4. Oliver is singing.
5. Emily and Oscar are dancing.
6. Max is playing the guitar.