English Grammar - Read Mode
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Explanation
'Contribution' refers to a gift or payment to a common fund or collection. It is a synonym for offering or donation.
Explanation
A river usually ends at its 'mouth' where it enters the sea. The question asks for 'beginning' but the answer key is 'mouth'. This likely implies a typo in the question text (meant 'end') or refers to the opening.
Explanation
All-day efficiency (energy efficiency over 24 hrs) is always less than commercial efficiency (power efficiency at full load) for transformers.
Explanation
The word 'always' often indicates a habitual action in the present simple tense. Thus, 'disrespects' (singular verb for 'He') is correct.
Explanation
The idiom 'Try as I might' suggests that despite one's best efforts, the result was failure. It is a set phrase.
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'Sealing' means to close securely or make water-tight. We must seal the roof to prevent leaks. 'Ceiling' is the inner roof surface.
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'Site' refers to the piece of land where the factory is to be built. 'Cite' is to quote, 'sight' is vision.
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'Ahead of' means before the arrival or occurrence of something. Preparing 'ahead of' the match means preparing before it happens.
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This question asks for the correct negative structure. 'Not anyone other' is the structure preferred in the provided answer key, although 'none other than' is also common.
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The correct idiom is 'easier said than done'. The phrase 'to be done' in the question text is incorrect and should be replaced by 'done'.