Mary is so quiet a girl that she seldom speaks in public places unless _____ to. A. is spoken B. is ...
2022-10-26 10:28:09 39次 2016届安徽师大附中高一下学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Mary is so quiet a girl that she seldom speaks in public places unless _____ to.
A. is spoken B. is speaking
C. speaking D. spoken
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