A

    Our eyes are very important to us. They are like cameras. We can 1 with our eyes. But if we don't take care of them, they may get hurt. 2 can we protect our eyes?

    On 3 days when the sun shines brightly, we'd better wear sunglasses. When we 4, we shouldn't stay too close to the books and the light shouldn't be too bright or too dark. We shouldn't read in bed. It's bad for our 5. We mustn't play games too long on computers or on mobile phones.

依次填入横线处最恰当的一组是     （       ）
这次经历，使我明白了一个道理：          ，             ，               ，               。所以，我要不断地告诫自己：面对生活中的机遇，千万不要错过。
①抓住了，你就走出了平庸②各种机遇从我们眼前滑过  
③反之，你就会跌入懊悔的深渊、失败的泥潭④人生就像一条不断流淌的河川