根据句意和首字母提示完成下列句子。

1. They can see many l_____  on the tree in summer.

2. Class begins! Please be q______.

3. A koala usually r_____  ten hours every day.

4. Elephants like to eat g______. Rabbits like it, too.

5. The lion is very l______. He usually sleeps 20 hours every day.