Choose the correct option to complete the sentence: "I ______ him since we met a year ago."

Correct option is D

The phrase "since we met a year ago" suggests that the sentence requires present perfect tense. The correct verb form is "haven't seen", which indicates an action that started in the past and continues in the present.
Information Booster: · "Haven't seen" follows the present perfect structure: (subject + have/has + past participle).
· Present perfect is used when an action started in the past and has relevance to the present.
· Example: I haven't eaten since morning.
· "Since" is often used with present perfect to indicate a time reference.
· The sentence implies a continuous state of not seeing the person for a year.
· Common in spoken and written English for time-related expressions.
Additional Information: · "Didn’t see" (past simple) does not match the sentence structure.
· "Not saw" is grammatically incorrect.
· "Hadn’t seen" is past perfect, used for actions completed before another past action.