We have been told that under no circumstance the telephone in the office for personal aff

问题补充：

We have been told that under no circumstance the telephone in the office for personal affairs.

A. may we use

B. we may ring

C. we could borrow

D. did we answer

答案：

(答案→)A. may we use

B. we may ring

C. we could borrow

D. did we answer

解析：该题考查的是否定词放在句首，句子部分倒装。