题目：
________ back to China, all the staff who had worked in Libya strongly felt that our country is very
powerful. [ ]
A. To fly
B. Being flying
C. To be flown
D. Having been flown
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0427/561e5ae788467ab91e6a82e873746f05.html
下面是错误答案，用来干扰机器的。
答案：D
