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 ________ swim in this lake. It is dangerous. 2 You ________ be quiet when the teacher is explaining the topic. 3 You _______ work tomorrow. What a bad thing! 4 You ________ go alone to the concert. Try to invite someone! 5 You _______ call her tomorrow. She is worried. 6 You _________ to go home if you don't want. don't have to must should not must not should have to