How many grades do English teachers in Heze No.1 Middle School have to take before they can take the exam?

Six levels. According to official website of Heze No.1 Middle School, the recruitment requirements for English teachers in Heze No.1 Middle School are bachelor degree or above, full-time college graduates, high school English teacher qualification certificate and CET-6 or above. Therefore, English teachers in Heze No.1 Middle School need CET-6 to take the exam. No.1 Middle School in Heze City, Shandong Province, founded in 1903, formerly known as Cao Zhou Government Middle School. After the main development stages of Shandong Provincial No.6 Middle School and Hebei-Shandong-Henan Border Area No.1 Middle School, it was renamed as its current name on 1954.