MP Board · Class 8 · English Grammar · TensesChoose the correct preposition of time: 'She has been studying three hours.'
Step-by-Step Solution
'For' is used for a duration/period of time (e.g., three hours), while 'since' is used for a specific point in time.
Detailed Options Breakdown
Option : since
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Tenses.
Option 1: for (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: from
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Tenses.
Option 3: at
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Tenses.
💡 Study Guide: This question tests core syllabus concepts from Tenses. For formulas, key summaries, and mock exam reference guides, read the full Tenses Revision Notes.