Exercise 1, exercise 2, exercise 3, exercise 4, exercise 5
MODAL VERBS
SHOULD/SHOULDN'T
Exercise 1, exercise 2, exercise 3, exercise 4, exercise 5
CAN/CAN'T - COULD/COULDN'T
Exercise 1, exercise 2, exercise 3, exercise 4, exercise 5
MUST/MUSTN'T
Exercise 1, exercise 2, exercise 3, exercise 4, exercise 5
HAVE TO
Exercise 1, exercise 2, exercise 3, exercise 4, exercise 5