Cover of Focus 1 - Student's Book

5.2 - must / mustn't, should / shouldn't

Focus 1 - Student's Book·Patricia Reilly, Marta Umińska, Bartosz Michałowski and Rod Fricker

2 exercises

Ex. 1
Ex. 2
← 4.5 - have to / don't have to5.5 - Past Simple: was/were, could →