Identify the part of the sentence that contains a grammatical error.
A. The group of students, B. along with the professor, C. were discussing the new findings D. in the research lab.
Show answer & explanation
Correct answer: C
Explanation
The subject of the sentence is "group," which is a singular noun. The phrase "along with the professor" is an intervening phrase and does not have any effect on the number of the subject (subject remains singular). Therefore, the singular verb "was" should be used instead of the plural verb "were".