Matching Pairs Have to, must and shouldOnline version Match the correct modal verb with the right obligation or advice. by Zaira Tristancho R 1 You _______ work tomorrow. What a bad thing! 2 You ________ be quiet when the teacher is explaining the topic. 3 You _______ call her tomorrow. She is worried. 4 You ________ go alone to the concert. Try to invite someone! 5 You _________ to go home if you don't want. 6 You ________ swim in this lake. It is dangerous. don't have to must have to should not must not should