Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
Ariel was convinced that something fishy is going up behind his back.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e was going on.
Statement: Ariel was convinced that something fishy is going up behind his back.
The given sentence is grammatically incorrect.
The verb "is" is the present tense, so, it should be replaced by the past tense "was".
The use of the preposition "up" is incorrect. So, the correct form is "on". The phrase was going on meant to talk about movement in relation to a place or a person in the present.
Correct sentence: Ariel was convinced that something fishy was going on behind his back.