You _____ swim here.This is the dangerous area., can’t, must, We _____ stop overfishing and polluting the sea., have to, has to, He_____ throw his plastic bags into the trash bin., can't, has to, _____ leave your trash at the beach. Pick it up before you go., Can't, Don't, The  kids  _____ go to bed before 10 PM., have to, has to, We  ____ save the ocean because many sea creatures are disappearing., must, don't, _____ bring your pets to the coffee shop. Pets aren’t allowed there.rium. , Don’t, Must, My parents  _____ stay home because they are seriously ill., has to, have to.

27.01_Tutorial G4

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