Choose the correct tense from the given options.
I had finished my exercise when my friend came to see me.

Correct option is C

Correct tense: (c) Past Perfect
Why (in detail):
• “had finished” = had + V³, which is Past Perfect.
• The sentence shows two past actions:
– First action: had finished (earlier past)
– Second action: came (later past)
Grammatical Rule (English):
• Past Perfect = had + V³ (used for the earlier of two past actions).
व्याकरणिक नियम (Hindi):
• जब दो past घटनाएँ हों, पहले हुई क्रिया के लिए Past Perfect (had + V³) प्रयोग होता है।
Hence, option (c) is the correct answer.