--You haven't lost the ticket, have you?

--________ . I know it's not easy to get another one at the moment.

[　　]

--Are you still thinking about yesterday's game?

--Oh, that's ________.

[　　]

--I believe we've met somewhere before.

--No ________.

[　　]

--________ that letter?

--Yes, I ________ it when I tidied the drawer.

[　　]

--Let's go swimming, shall we?

--________.

[　　]

--Thank you very much.

--Not at all. It is ________ my duty as yours.

[　　]

--Do you like it?

--Yes, nothing ________.

[　　]

--Why didn't you buy that car?

--I ________ , but I didn't have the money.

[　　]

--Who is the girl standing over there?

--Well, if you ________ know, her name is Mabel.

[　　]

--________ he open the door?

--Yes, please.

[　　]