"Please talk quietly in the library."
Imperative because it gives a command or request.
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Is this ixl? I think i Can give answers
The first choice (Using a sharp knife, cut each piece of bread diagonally into two equal pieces) It gives the reader a clear and detailed visual of how he is making the food
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Using cool colors such as purple blue etc in an artpiece would set a dark sad gloomy mood rather than an artpeice with warm tones such as yellow red orange etc makes you feel happy and cheerful.