第8题: [单项选择]The staff have been informed that under no circumstances ______ the telephone in the office for personal calls. A. may they use B. they use C. they could use D. did they use 参考答案:A 答案解析:[解析] 倒装结构 员工们已经得到通知,在任何情况下,他们都不可以在办公室打私人电话。否定短语under no circumstances意为“无论如何不,绝不”,位于宾语从句句首时,句