CollegeBoard: This is the website that issues the SAT. Only practice tests for the SAT are available on this site.
March2Success: This website sponsored by the U.S. Army has ample practice questions and tests. There is also an online course that can aid in your studying. If you are taking the ASVAB, you can find tips here.
Khan Academy: If you love videos, then this resource is for you. As you review certain topics of the SAT/ACT, there is likely a video on Khan Academy as well some practice questions.
ACT Academy: This is a free resource provided by the company that makes the ACT. There are personalized practice tests as well as lessons.
Kentucky Virtual Library: Contains many tutorials and practice tests for the SAT/ACT.
*If you are eligible for free and reduced lunch, reach out to your counselor because you can get a fee waiver to take the SAT/ACT for FREE! *
https://www.englishclub.com/grammar/parts-of-speech.htm
http://www.butte.edu/departments/cas/tipsheets/grammar/parts_of_speech.html
https://www.youtube.com/results?search_query=khan+academy+english
https://study.com/academy/course/9th-grade-english-help-course.html
https://study.com/academy/course/9th-grade-english-homework-help.html
https://study.com/academy/course/10th-grade-english-help-course.html
https://study.com/academy/course/11th-grade-english-help-course.html
https://study.com/academy/course/12th-grade-english-help-course.html
https://study.com/academy/course/english-grammar-help-review.html
WISE Study Tips Top 10 Skills for High-School Students
CollegeVine’s Top Six Study Tips for High School Students
This one has a lot of cool things on it!
Study Skills Guide: Study Tips, Strategies & Lessons
ACT Tips
Grammar and Punctuation