Question

这题为什么选D，不是选C，谢谢！

Then, you need to find a place that'scomfortable. Make sure it has good lighting, the temperature is nice and you'rein a good chair. Or you can find some place that you can relax in withoutfalling asleep, although there's nothing wrong with sleep.
Next, be sure to shut off the TV, Internet,cell phone, radio, or other music. Let reading be a quiet time. Mark an"x" on your calendar every day you read, and try to keep your unbroken"x"es going as long as possible.
3. While you arereading, you'd better _______
A. make sure you are alone B. mark a big "x" inyour notebook
C. find a good chair with good lighting D. beconcentrated and quiet
这题为什么选D，不是选C？谢谢！

Answer 1

题目说"while",指在你正在读书时。如果你正在读书的时候还去忙着找椅子，这与文意不符。改成Before就选c.

Answer 2

you need to find a place that'scomfortable 第一句话说明了你需要1个比较舒服的地方。和后面的是对这句话的概括，比如确保它有良好的照明,温度很好等 C的话太片面了，只说明要有舒服的椅子，灯光。第2短话意思是接下来,一定要关掉电视,互联网,手机,收音机,或其他音乐。让阅读成为一个安静的时间。Let reading be a quiet time. 这是这段话的关键，所以D选项很好的概括了第1段的舒服和第2段话的安静，C选项只是舒服的1种表现容易，所以不选。

追问

可惜只能采纳一个，还是得谢谢你提醒！