In the given sentence, identify the segment which contains the grammatical error.
He wonder for a moment if he had mistaken the direction.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. He wonder.
The given sentence is grammatically incorrect.
When two actions occur in the past, one after the other, the first action is expressed in Past perfect tense and the second tense in Simple past tense.
In this sentence, the first action is: The person took a certain direction
And the second action is: He thought that he might have mistaken the direction.
The first verb is "had mistaken" and the second verb thus should be "wondered".