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.
Entering the hall, the show had started.

Options

A. A) had started
B. B) the show
C. C) Entering
D. D) the hall

Answer

C

Explanation

There are two incidents of the past and one of them happened before the other one. "By the time + Verb 2nd forms, Had + V (3rd form of the verb)" is grammatically the correct structure for the given sentence. Hence, by the time I/we entered the hall, the show had started. will be answer.