下列句中划线部分，属于定语从句的有：
选项：

A: You will find that with each repetition you will get something more.
B: What you need to do is to deal with new words in different ways according to how frequently they occur in everyday use.
C: You find it simply impossible to memorize all the new words you are learning.
D: It is true that there are few situations at school where you have to communicate in English.