Students exercise during breaks.[Photo by Cao Zichen/For China Daily]

The students, who have been away from school since mid-January, will take their entrance exams to senior high schools and colleges in late June and early July, respectively.

All other students, except those of grades 1 to 3 and kindergartners, will have resumed classes in school by May 18, according to the city's education commission.

Shanghai is one of many cities across the mainland that have reopened school campuses to students as the outbreak subsides.

"Reopening the schools has been one of our top priorities to help the senior students adapt to the intense preparation required for the national college entrance examination," says Lu Jing, director of the Shanghai municipal education commission.

"We decided to resume offline classes on April 27 to ensure all graduating students have at least two full months in school to prepare for their graduation exams."