We have been told that under no circumstances_______ the office telephone for personal affairs.A.may we useB.we can useC.we could useD.did we use
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A解析本句综合了否定性状语提前的倒装句作宾语从句两项考查内容，B、C项容易排除。D项不合句意，选A项，表示许可。全句意思为：我们已多次被告知在任何情况下都不允许使用办公室电话处理个人事务。
【标签】句型变形