Directions: Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer.
The concert has started when he reached the venue.

Options

A. A) reached the venue
B. B) The concert
C. C) has started
D. D) when he

Answer

C

Explanation

When two actions are in the past, the 1st action should be written in past participle or Had + V (3rd form of the verb) form. and the second action should be in past tense(V.). Hence, the concert had started. is answer.