The head teacher of a school that has been closed because of asbestos removal has suggested his students should be given dispensation with exams grades.
The King Edmund School in Rochford, Essex, closed on 15 November when asbestos was found during demolition.
The Department for Education has pushed reopening back until at least 23 January and said work was being completed "as quickly as possible".
Jonathan Osborn said he felt a "great deal of frustration".
"It's patently clear that the situation [the students] find themselves in, through no fault of their own, will have an ongoing impact and will make a difference to how they're able to engage with their exams, and that needs to be taken into account," he said.
"What adjustments can [the DfE] make that will be fair and reasonable for students so that the work they've put in is recognised in terms of the grades that they get?"