填空题。
1. They are __________(搜查) the forest for the missing boy.
2. Daniel is the most __________(勤勉的) boy.
3. Mr Green closed the door __________ and left, so nobody noticed him.
4. It is so dark at night that we cannot see __________ (任何人).
5. You can borrow books from the school library ,but you should __________ them on time.
6. The bats (蝙蝠) always sleep in the __________ and go out for food at night.
7. His grandfather __________ (死) five years ago.
8. Would you like to __________ 
on the moon some day?
9. Look! A snake is moving towards us. It is very __________ 
.
10. When you leave , you should __________ to turn off the lights.
1. searching 2. hard-working 3. quietly 4. anyone 5. return
6. daytime 7. died 8. travel 9. dangerous 10. remember