Anonymous Option A is the correct answer Hmm. That's strange. Only a group ( candidates ), not a single person ( teacher ), can gather in a room, so it seems to me that only b is correct.
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AnonymousOption A is the correct answerHmm. That's strange. Only a group (candidates), not a single person (teacher), can gather in a room, so it seems to me that only b is correct.
AnonymousTeachers and students together can gather in a room, right?Yes, but the subject of the sentence is "teacher" (singular), and the 'having'-phrase applies to the subject of a sentence, not to everything mentioned in the sentence.