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