填入下面一段文字横线处的语句，最恰当的一句是（ ）“日晕”是日光通过云层中的冰晶时，经折射而形成的围绕太阳呈彩色环形的光现象。有的人则赋予了它一个诗意的别称：神光。 。雪后的晴天容易出现“神光”，其道理跟雨后出现彩虹如出一辙。

Lucy has _____ all of the goals she set for herself in high school and is ready for new challenges at university.

There _______ a lot of traffic on the way to the World Park.

We’ll have a picnic in the park this Sunday _____ it rains or it’s very cold

Mary, you can’t imagine what great difficultyI’ve had _____ him with the project.