He is studying in the fifth grade.

他在五年级学习。

Social acceptance by peers in early childhood also predicted grades in fifth grade.

幼儿期同伴的社会接受度也能预测五年级的成绩。

After Fifth Grade the World!

五年级后的世界！

I teach fifth grade. I love that grade!

我教五年级， 我很爱这个年级！

I was assigned to the fifth grade.

我被安排到五年级了.

When I was in the fifth grade, I moved to the country.

当我在五年级的时候,我搬到了乡下。

What?Do you mean the kid who bullied me in fifth grade?

什么，你是说我五年级时那个让我出丑的同学？

This happened in my neighborhood when I was in fifth grade.

我上五年级的时候，家附近发生了一件类似的事。

And in the fifth grade, the fastest runner was Ronnie McCoy.

而五年级的时候, 我们班的飞毛腿是罗尼.麦克莱.

Now suppose we total up all the summer learning gains from first grade to fifth grade.

现在看看最后一个列表，它显示的是从一年级到五年级所有暑假所获得的总和。