补全单词。 1. If you have a t _____, you should see a dentist. 2. The little girl's i _____ (ill) is very serious, we must take her to the hospital at once. 3. —I have a sore throat. —You should drink l ots of w _____ . 4. She has a fever .She should lie down and r_____ . 5. I'm not feeling w_____ , I have a cold.