第13题: [单项选择]We have been told that under no circumstances ______ the telephone in the office for personal affairs. A. may we use B. we may use C. we could use D. did we use 参考答案:A 答案解析:[译文]我们被告知:无论在什么情况下我们都不能用办公室的电话谈私事。
[题解]倒装的用法:under no circumstances这一否定成分提前了,因此构成倒装。[A]为正确答案。