买卖合同具有有偿性、双务性和实践性。()

A. I was that hungry I could have eaten a horse.
B. She kind of hoped to be invited.
C. He spoke sort of proudly.
D. I didn"t have more than a dollar on me.

A. John often put himself forward.
B. Ah, you"re yourself again.
C. He was beside himself with joy.
D. He will solve the problem himself.

A. There is no doubt about it, is it？
B. No one was hurt, were they？
C. She seldom goes to the theatre, does she？
D. I don"t think he is bright, is he？