1. I ___ understand, do you?
2. Dr. Watson ___ smoke, does he?
3. We ___ like country music very much.
4. Janet said she ___ want it anymore.
5. Mr Johnson ___ live in New York. He lives in Boston.
6. Rice ___ grow in cold climates.
7. They like tea, they ___ like coffee.
8. We are new here. We ___ know him.
9. Jack has bad breath because he ___ often brush his teeth.
10. We are rich so we ___ have to work.