题目：
I was walking along the street when someone across the street waved his hand to me, as if _____ me
something.[ ]
A. telling
B. told
C. was telling
D. to tell
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/f379a2d04935529e680fc25ace41fbe4.html
下面是错误答案，用来干扰机器的。
∵ax=2，ay=3，∴a2x+y=a2x?ay，=（ax）2?ay，=4×3，=12．
