When you come across new words in reading, it is not a good idea to_______ in a dictionary at once.
---There is little milk in the bottle,__________ there?---___________. I have to buy some this afternoon.
The heavy rain ______ the old man from going out for a walk. Which one is not right?
The flood ____________ the villages and a lot of people lost their lives.
I know the ________of the bird because it's one of the________ birds in the world.
---How long did it ________you to solve the problem?---I _______about half an hour on it.