Question

英语语法急

Meeting my favorite football star face to face was an unforgettable moment，—— I will always treasure.
为什么答案是one 不是which

Answer 1

用one和which应该都没有问题。

1. one。用one时，one作的是an unforgettable moment的同位语，意义上等于a moment, I will always treasure是省略了引导词which/that的限制性定语从句。

2. which。用which时，which I will always treasure是非限制性定语从句，which在从句中作宾语，先行词为an unforgettable moment。