Question

Fill in the blank with the most appropriate option.

I ___ him since we met a year ago.

• A. didn't see
• B. haven't seen
• C. hadn't seen
• D. none of these

Answer 1

Answer: (B)

haven't seen

The given sentence is in present perfect tense. It refers to an action that began in the past and has continued up till now. Such sentences take the form S + has/have + V3 + O.
"Didn't see" in option A is incorrect as the verb 'see' does not agree with the tense of the sentence.
"Haven't seen" in option B is correct. The verb 'seen' agrees with the tense of the sentence. The present perfect auxiliary verb 'have' agrees with the subject, which is first person singular.
"Hadn't seen" is incorrect as the auxiliary verb is in past perfect tense.
As option B is incorrect, so option D is void.