五年级用英语怎么说

五年级用英语怎么说是"Fifth Grade"。

1. 我的儿子今年上五年级了。My son is in fifth grade this year.

2. 我们五年级的同学正在学习几何。Our fifth-grade classmates are learning geometry.

3. 五年级的学生需要掌握更多的数学知识。Fifth-grade students need to master more math knowledge.

4. 五年级的比赛将在下个月举行。The fifth-grade competition will be held next month.

5. 我还记得我上五年级时的老师。I still remember my teacher when I was in fifth grade.