Pick out the appropriate expressions from the eight choices below and complete the fol lowing dialogues by blackening the corresponding letter on the Answer Sheet Ⅰ.
A.
I was held up by the traffic jam.
B.
That's a good price.
C.
I think so.
D.
If you run, you might catch it.
E.
Thank you very much.
F.
Nobody like this.
G.
Yes, he will.
H.
I do some running every morning. Hoe: What do you do for exercise?David: ______