IV. Choose the appropriate modal verb. 1) Bill (should / must / can/ shouldn't) drink milk everyday. He is very thin. 2) Students (shouldn't / should / must / can leave the classroom before the ring bells. 3) You (should / shouldn't / must / can) brush your teeth after breakfast. 4) Your father (should / must / would / can) stop smoking 5) (Can / Must / Should / Would) you pass my pencil to me?