Choose and fill in the blanks. (选择适当的句子填入句中)

A. He is sad, too.    

B. You look so sad.

C. But I should ask my father first.

D. See you later.

Mike: How are you，Mary? 1____

Mary: My mother has to go to the office. My family can't go for a trip.

Mike: And how is your father?

Mary: He is working now.

Mike: How does your father feel?

Mary: 2____

Mike: Would you like to have a picnic with my family?

Mary: Of course. I'd like to go. 3____ 

Mike: OK. We'11 wait for you.    

Mary: Thank you. 4____