Yes, the modifier is used correctly. "He spoke sharply to his sister" would be the correct way to write the sentence.
well, keen itself means smart or sharp. Keenly is a verb which means, " to perform an action sharply,precisely or with accuracy". :)
'Sharply' is an adverb, so you'd want to use 'contrast' in a verb form. Adding an 's' to 'contrast' would work. Consider these examples:The rain today sharply contrasts yesterday's weather.His shirt's color is in sharp contrast with his pants.Their opinions contrast sharply with those of the opposing group. It greatly depends on how the two words are used. "To sharply contrast" is correct. But often, those two words would need to be modified depending on how you're using them.
sharply
Yes. It is the adverb form of the adjective sharp, and meaning keenly, strongly, or tersely. His skills had been sharply honed by practice. The car turned sharply to the left. He spoke sharply to his assistant.
The word 'creak' is both a noun (creak, creaks) and a verb (creak, creaks, creaking, creaked).A noun functions as the subject of a sentence or a clause, and as the object of a verb of a preposition.The verb functions as the action of the subject of a sentence or a clause.Examples:There is an annoying creak in the stairs. (noun, direct object of the verb 'is')Every time you step on it, the fourth step will creak sharply. (verb)
The car turned the corner so sharply, that it went up on two wheels! He answers pointed questions sharply.
He was pierced in the chest sharply because of falling glass. The note was played sharply because of the flute players hard breathing. Her words came out sharply, more so than she intended.
"Retorted" is a word that means to sharply reply or respond.
Depends on the gun. Some are sharply pointed.
The word 'float' is both a noun (float, floats) and a verb (float, floats, floating, floated).Examples:When the float bobs sharply, it may mean you have a bite on your hook. (noun)We can float our boats at the duck pond in the park. (verb)The noun forms of the verb to float are floater and the gerund, floating.
The word sharply modifies an action to indicate it is done in a sharp (or precise) manner.