1. What are Paul and Terry up to? (Correct?)<br/><br/>2. What is Paul and Terry up to? (Contraction? 'What is Paul and what is Terry up to?' ?)<br/><br/>What about no names?<br/><br/>3. What <b>are</b> he and she up to? (Correct?)<br/><br/>4. What are he and <b>her</b> up to? (Incorrect?)<br/><br/>5. What <b>is</b> he and <b>her</b> up to? (What about this? Incorrect as well?)<br/><br/>Thanks.