没有一个学生参加了那个可选研讨会。
___Not ___one student attended the optional seminar.
争吵过后,她好几天都没跟我说一个字。
After the argument, she said ___not ___a word to me for days.
在这个现代街区,你找不到一栋传统建筑。
In this modern district, you will find ___not ___one traditional building.