A：
B：
C：
D：
No one knows what _______ in fifty years.
根据问句选答句。
How old are you?____ A. I'm 10.
Happy birthday！____ B. Five.
How are you?____ C. Thank you.
How many boxes?____ D. I'm fine, thank you.
I have a ruler.____ E. Me, too.
商鞅变法的措施中，对后代乃至当代都产生重要影响的行政管理制度是（ ）
，则
（ ）
