1) A: why is Billy so naughty?
B: He is tired
2) A: why are you tasting the soup?
B: I think it tastes a bit funny
3) A: it's look like their cats has broken down again
B: Yes, they are looking for a new one at the moment
4) A: What do you think of Ann?
B: She's cool! I think of inviting her to my party