English Language · English
वाक्य के उस खंड की पहचान कीजिए जिसमें व्याकरण संबंधी त्रुटि है। यदि कोई त्रुटि नहीं है, तो 'No error' का चयन कीजिए। These experiments had been going on since several months.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1since several months.✓
- 2No error
- 3had been going on
- 4These experiments
सही उत्तर देखें
since several months.
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