A. This B. evening C. He D. Goodbye E. She
—Goodbye.
—Good evening, Sam.
—________
—I'm ten.
⑴how old A. 她的腿
⑵how many B. 多少
⑶sit down C. 起立
⑷stand up D. 多少岁
⑸her leg E. 坐下
B: ________________.