语法填空题:I wrote a note telling her that the students appreciated everything she did and ___ her contribution to our school made a difference in all of our lives. 为什么用all不行呢？一定要用that吗？原因何在？and后怎么可以用that的呢？希望得到详细一点的解释。谢谢热心网友！！！
一、首先要明白这个句子的语法结构。
主句：I wrote a note
宾语（分词短语）：telling her that the students appreciated everything she did and ___ her contribution to our school made a difference in all of our lives 其中——
【分词】telling
【间接宾语】her
【并列宾语从句】——所并列的是告诉她的两件事
并列从句1 that the students appreciated everything she did （告诉她）这些学生赞赏她所做的一切 [其中 she did 是省略关系代词的定语从句]
并列从句2 and (that) her contribution to our school made a difference in all of our lives （而且还告诉她）她对我们学校的贡献在我们所有人的生活中是十分重要的。
二、通过上述分析，整句话可以改为如下的两个独立的句子：
I wrote a note telling her that the students appreciated everything she did.
And I wrote a note telling her that her contribution to our school made a difference in all of our lives.
三、把第二个句子中与上文重复 I wrote a note telling her 省略后即为：and that her contribution to our school made a difference in all of
这就是为什么只能用 that 而不能用 all 的原因。