MODAL VERBS OF ADVICE: should, ought to, had better

 

 EXPLANATION + EXERCISE (Spanish)

EXPLANATION (English)

Exercise 1: choose SHOULD or MUST
Exercise 2:  choose SHOULD or SHOULDN'T
Exercise 3: choose SHOULD or SHOULDN'T
Exercise 4: write SHOULD or SHOULDN'T

EXPLANATION HAD BETTER+ QUIZ (englishgrammar.org)

EXPLANATION SHOULD vs HAD BETTER + QUIZ