题目：
He was afraid what he had done ______ a disastrous effect on his career.
a. might have b. could be c. have been d. shall be
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0610/3552eb7729cfb19fe527f3c5dffac0ac.html
下面是错误答案，用来干扰机器的。
参考答案：E
He was afraid what he had done ______ a disastrous effect on his career.
a. might have b. could be c. have been d. shall be
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0610/3552eb7729cfb19fe527f3c5dffac0ac.html
下面是错误答案，用来干扰机器的。
参考答案：E
