根据短文内容，从下列选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。
Do you sleep well every night? Studies show if we have a good rest, we must have more energy to study. At the same time, we will be healthier.
The seep environment is very important to us. The bedroom is the main place where we sleep at night, so its environment directly affects the quality of our sleep. . So we should advise our parents to pay attention to our bedroom environment.
. The bedroom light should be neither too bright nor too dark. If the light is too dark, it will affect people's eyesight. If the light is too bright, it can affect the speed of falling asleep. So we should choose a kind of yellow light that gives feeling of warmth.
. Many old people like to put a lot of flowers in the bedroom. Of course these flowers can make us relaxed and feel well. But there are too many plants in the bedroom, which can really affect people's sleep quality. .
Our bedroom should be ventilated (通风) often. . Otherwise, we may find it difficult to breathe, which can affect our sleep quality.
A. We should sleep at night with windows open.
B. Our bedroom should have proper light.
C. We should pay attention to our eyesight.
D. There shouldn't be too many flowers in our bedroom.
E. And good sleep plays an important role in our health.
F. So don't put too many plants in our bedroom.
G. We should often open the window so that fresh air can come in.
