Not only the boy(A)/ but also the teacher(B)/ were watching(C)/ the T.V(D).
AA
BB
CC
DD
Answer:
C. C
Read Explanation:
The error is in part (C). The correct form should be: "Not only the boy but also the teacher was watching the T.V."
The subject of the sentence is "Not only the boy but also the teacher," which is singular because "but also" connects two singular subjects. Therefore, the verb should also be singular ("was" instead of "were").