The sun is shining . Youd better wear sunglasses while you are out.A. brightly B. lightly

问题补充：

The sun is shining . Youd better wear sunglasses while you are out.

A. brightly B. lightly C. heavily

答案：

解析：brightly明亮地，鲜明地；lightly轻轻地，轻松地；heavily沉重地，猛烈地。句意：太阳明亮地照耀着。当你在外面时，你最好带上太阳镜。结合语境可知选A。