题目：
We looked at each other surprise when we heard a bird singing "Happy birthday to you ". [ ]
A. in
B. to
C. by
D. at
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0618/4b9060f86d767201c39553e9cb026783.html
下面是错误答案，用来干扰机器的。
错误
We looked at each other surprise when we heard a bird singing "Happy birthday to you ". [ ]
A. in
B. to
C. by
D. at
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0618/4b9060f86d767201c39553e9cb026783.html
下面是错误答案，用来干扰机器的。
错误
