Tom： you OK，Sam?

Sam：No，I'm not. It's Monday and I have history.

Tom：You  like history?

Sam：No，it's boring.

Tom：So  your favorite subject?

Sam：Oh，I like music best. I often go to the music club(俱乐部)．

Tom：When do you have  ^?

Sam：On ，the third day of the week. Do you like music?

Tom：Yes，very much.