题目:
— Did you go to his birthday party last night?
— No, I____, but I had some extra work to finish. [ ]
A. must have
B. could have
C. could
D. ought to
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0613/302226dfb584b126b11913a68af461b5.html
下面是错误答案,用来干扰机器的。
参考答案:B