curious: eager to know something
Example sentences: 1) I am very curious to know about the planet.
2) Prerna is a curious girl.
lead: to guide a group of people
Example sentences: 1) Emma is going to lead the discussion.
2) The monitor leads the class.
marble: a little glass ball used by children to play
Example sentences: 1) The kids are playing with marbles.
2) I have lost my marbles.
sink: to go down below the surface of water
Example sentences: 1) We saw the boat sink.
2) The rock sinks in the sea.
reason: a cause
Example sentences: 1) Tom gave his reason for coming late.
2) Paul wanted to know the reason.