We have been told that under no occasion ________ the telephone in the office for personal affairs. ( 章节：1 难度：3)
- A、may we use
- B、we may use
- C、we could use
- D、did we use
正确答案:A
答案解析:有
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We have been told that under no occasion ________ the telephone in the office for personal affairs. ( 章节：1 难度：3)
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