After two Must-Not-See TV games the past two Thursday nights,...

Thousands of Success Academy charter school parents, students and staff packed a Queens rally Thursday to demand Mayor Bill de Blasio keep his promise to find them a middle school space before kids are squeezed out.

“We deserve a middle school. The mayor made a promise,” the charter school network’s founder Eva Moskowitz told the throngs assembled in Roy Wilkins Park in St. Albans. “Do you think when we start kids in kindergarten they don’t grow up?”

Hizzoner — long a vocal opponent of charters — promised in 2017 that he would help students at four Success Academy schools in southeast Queens secure an additional space as they aged into middle school.

The site is supposed to be chosen by the end of 2019 and be ready to open next year. But with this school year underway, Moskowitz said that Success Academy hasn’t seen so much as a timeline from City Hall.

“We don’t have a lot of time because there is no plan B,” Moskowitz told the crowd, clad in bright orange T-shirts reading “Kids Over Politics.”

Without an additional space for middle-schoolers, 227 Queens fifth-graders-to-be will be forced to either commute to Success Academy locations in other boroughs or leave the network altogether, the group said.

The city’s foot dragging has left parents incensed, with Thursday’s rally coming two weeks after a petition with more than 11,000 signatures demanding the space landed on de Blasio’s desk.

“What happened to the promise?” asked Happiness Montgomery, mom to a Success Academy first-grader, on Thursday. “It’s not impossible to do, the space is there.”

The group contends that there are several public school buildings in the area with hundreds of empty seats that would suffice in a space-sharing arrangement.

“He can’t manage New York, so how was he going to run the nation?” added Montgomery, 44, in a jab at de Blasio’s aborted White House bid.

The city Department of Education insisted that despite its slow pace the charter kids will have a place to hang their backpacks in 2020.

“Success Academy will have the middle school space it needs in Queens next year, either in public space or in private space with rental assistance provided under state law,” said a DOE spokesman. “We’re working on our standard timeline — we have conversations with both district and charter school communities in the fall, and then we present school space proposals after the community has had a chance to give feedback.”