根据下面短文内容，在短文的空格处填上一个最恰当的词，使短文完整、通顺。

As students, you should study hard. More importantly, you should study in a smart way. Try these methods below.

Spaced Repetition

According to Ebbinghaus, you’ll __(1)__ easily if you don’t review in time. After you read your study material for the first time, you’d better come back to it 6 hours later, then 24 hours later, 3 days later, 7 days later or even 14 days later and above. Repeat it __(2)__ least 5 times, and you can almost remember everything.

Jim Kwik's Technique(方法)

According to Jim Kwik, an expert on reading and the memory, the key to understanding your reading material is to ask question. You can put a line down the ___(3)__ of a piece of paper. On the left, take notes of key information,while on the right, write down 3 kinds of questions—how, when and why. Among the questions, the most important __（4）_ is how you can use the key information. Connect it with the knowledge you’ve __(5)__ known. And think about what real life problems you can solve by using it. This helps to keep the information your mind.

The Feynman Technique

Studies show students can understand what they’ve learned better when they _（6）__ someone else. The Feynman technique includes 4 basic steps. First, study. Second, teach what you’ve just learned to someone with zero knowledge of the subject in ___（7）___ words. Third, find out which parts you can explain well and which parts you can’t. Go back to the book and try to understand the topic once again. Fourth, repeat the steps above __（8）__ you can explain the topic without looking at the book.