根据句意填空，每空一词。

1.  I'm t______. Can I get something to drink?

2.  She often feels t______.  She has to sit down and rest every five minutes.

3. The teacher doesn't know why the boy has so many ______ He always needs some help.    

4.  I can't work out the hard math ______.

5. —Can you help me buy a newspaper?      —No ______.

6.  ______ an apple a day is good for your health.

7.  I feel t______ after a whole day's work.

8.  We should get up e______ in order to catch an e______ bus.

9.  Don't be s______ out. It's easy.

10.  The Spring Festival is a______  Chinese festival.

11.  Don't you ______ it? It's true.