The third one, '<span>Before I go to the grocery store (I’m going to the one on Burnet Street), tell me what you need.' should be your answer choice.</span>
Answer:
has
Explanation:
Has is used alongside the PRONOUNS <em>H</em><em>E</em> / <em>S</em><em>H</em><em>E</em> / <em>I</em><em>T</em> and <em>W</em><em>H</em><em>O</em> and SINGULAR NOUNS.