Spot the Errors - English (MCQ) for Bank, MBA, CAT, MAT, GMAT, SSC for Q. 26171
Q. I can't allow (1) / you to go out of the class (2) / unless they provide (3) / further instructions. (4) / No Error (5)- Published on 06 Jan 17
Replace 'unless' with 'until'.
Until denotes sense of time, whereas Unless denotes condition.
In this case, Until must be used.
The correct sentence should be: I can't allow you to go out of the class until they provide further instructions.