1. —"Whose shorts are these?"
    —" ____."

A. I don't know
B. it's his shorts
C. I'm short
D. He's short

2. —"Would you like a cup of tea?" 
    —"____. I'd like a cup of coffee."

A. Yes, please
B. No, thanks
C. No, thank you
D. No, thank

3.—"Have a good trip!"
   —"____."

A. That's all right
B. Thank you
C. You're welcome
D. Have a good trip, too

4.—"____?" 
  —"I need a postcard, please."

A. What do you want
B. What do you do
C. Can I help you
D. What are you doing

5. —"Don't run in the train, Danny." 
   —"____."

A. Sure
B. I'm sorry
C. It's great
D. Let's jump

6. —"When do you leave for Japan?" 
    —"____."

A. On January 21st
B. In January 1st
C. By train
D. With my parents