In the following questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is your answer. If a sentence is free from error, then your answer is (4) 1.e. No error.
The teacher, as well as the students, (1) have gone on an excursion (2)/ to Oooty during their summer vacation. (3)/No Error. (4)

Answer

2

Explanation

has (had) will replace have because - when two subjects are joined with as well as, along with, in addition to, the Verb agrees with the first Subject. The sentence is in Past Tense
Look at the examples given below :
The Moon, as well as Venus, are visible in the night sky. (rong)
The Moon, as well as Venus, is visible in the night sky. (right)
Hence, had gone on an excursion is the right usage.