今年招哪几个年级？

How many grades/classes are you recruiting this year?

今年学校招收以下年级学生，但目前需求量大，五月一号前会视情况拓班。

幼儿园托育班，小、中、大班

小学1-4年级 （5年级根据报名情况可能会在4、5月开班）

初中6、7年级

高中9年级 

In the following grades, but the current demand is large, and classes may be expanded depending on the situation before May 1st 2021.  Kindergarten nursery classes, small, middle and large classes.  Primary school 1-4 grades (5th grade may start in April or May depending on the registration situation)

middle school 6th and 7th grade 

High school 9th grade