This site, from the University of Ottowa in Canada, has a good online quiz and review section for linking verbs 🙂

This website is a college website, Sinclair Community College, that offers handouts for review and worksheets for grammar practice.

This website has some good info about Language Arts from a teacher. I liked the info I found there about verbs.

When my husband was young he knew a family that was a singing group. They travelled alot. If someone got a sore throat they would give them a home remedy.
This morning Samuel and Jonathan awoke with sore throats. So we made them some:
1 cup of hot water
1 Tbsp of apple cider vinegar
3 Tbsps of honey

SchoolExpress~ This website offers many worksheets to provide lots of practice in identifying verbs.
Another helpful site: ABC Teach