2. Circle the correct answer.
       1. My sister is ( in / at ) the dentist.

       2. What's ( wrong / matter ) with her?

       3. Do you ( often / never ) have a headache?

       4. I can't get up ( in / at ) the morning.

       5. I have ( an / a ) headache.

       6. My knees are ( hurt / hurting ) me.

       7. The boy ( with / and ) the dog is my best friend.

       8. The woman ( has / have ) a terrible stomachache.

       9. They have a fever ( and / but ) their backs hurt.

       10. We ( feels / feel ) very tired.