--Let's ask them, why they wore it.
Why did Bob make it?
--We can find out why he made it.
Why did they bring it?
--Ask you friends why they brought it.
It's cold outside, I am going to put on a sweater.
--You'd better put a coat on too.
But we'd better take off our things when we're inside.
--We can take them off in the hall and hang them up.
Did you take down his instructions?
--Yes, do you want to look them over.
Yes please. I want to carry out the instructions as well as possible.
--All right. Let's sit down and go over them together.
Did you throw away the extra paper
--No. I gave about half of it away.
Do you have some left then?
--No. I used up all the rest yesterday.