Do or Make?

http://www.englishmedialab.com/Quizzes/intermediate/do%20or%20make.htm

Conditional test

https://www.ego4u.com/en/cram-up/tests/conditional-sentences-2

Conditionals game

http://www.eslgamesworld.com/members/games/grammar/fling%20the%20teacher/conditionals/conditionals%20practice.html

Should must need to

http://learnenglishteens.britishcouncil.org/grammar/beginner-grammar/have-must-should-obligation-advice

https://www.thoughtco.com/must-have-to-and-need-to-in-english-4177288

https://www.businessenglish.com/grammar/modals-must-have-to-should-should-have.html?lang=spa

Past Simple and Continuous (5th Grade)

https://www.youtube.com/watch?v=0_lrUe7sAAc

https://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-1.html

https://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-2.html