Read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence, the number of the part is the answer. If there is error, the answer is (5).
I cannot permit you (1) / to leave the class (2) / unless the teacher comes (3) / and instructs me in the matter. (4) / No Error (5)
Replace `unless’ by `until’, `until’ is used in reference to time while `unless’ is used in reference to condition.
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