Correct option is D
The correct sentence is (d) Only I is correct.
Explanation:
· Sentence I uses
present perfect continuous tense (“has been cooking”) which is correct when an action started in the past and continues up to the present.
· “Since I left my job” – implies a point in the past, thus the use of “has been cooking” is ideal.
· Sentence II: “is cooking” doesn’t fit with “since I left” (requires perfect tense).
· Sentence III: “is been cook” is grammatically wrong—
incorrect verb form and sequence.
Grammatical rule used:
✔ Use
“has/have been + verb-ing” for actions continuing from a point in the past until now.
Example: She has been studying since morning.
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Information Booster: Use
“since” with perfect tenses to show continuity from a point in the past.