Merlyn gave you the correct answer for number 1. 2. It should be "bad" because "feel" is a linking verb here, not an action verb,and requires an adjective, not an adverb. http://www.quickanddirtytips.com/education/grammar/bad-versus-badly?page=all 3. You're comparing two people, so you need better, not best. 4. Merlyn is correct 5. "Do" is an action verb and requires an adverb to modify it, so you ended to use "well". 6. "All right" is the accepted conventional spelling. http://grammarist.com/usage/all-right-alright/

1. Some jobs are done easier by blind people than by those with sight. Why we can't say 'done easier' isn't it one syllable? It is a comparative sentence with an action so it must have "more" :"Some jobs are more easily done by blind people than...." 2.Oscar felt badly about rejection slips but worse about his bank account. Why *is 'badly' wrong here? - "badly" is correct, the problem is you need "the" before "rejection" : "...about the rejection slips.." 3, Victor was not the stronger of the pair, but he was the best boxer. Why not 'best'? --"best" IS correct. 4. Of all the potential winners, the judges agreed that Miss Idaho was more skillful -- ".. the most skillful" because there is only one winner 5. The United States has no central educational authority, but overall it does good. Why we can't use good there? -- I don't know, but you must always use "well" . "good" is considered bad English even though many people use it. 6. A trembling voice may indicate that the speaker does not feel alright. 'Why can we say alright and we should say all right? -- "alright" is the correct spelling "all right" is bot how it is usually spelled. However it is not the best word for this sentence, "comfortable" would be a better word or "....that the speaker feels nervous." would be best.

1) "easier" is an adjective. "done" is a verb, so to modify it, we need an adverb. You would want "more easily" 2) For feelings, we use adjectives, even though "felt" is a verb. 4)More skillful then who? If more skillful then all the candidates, we use "most skillful". 5)good is an adjective. Use an adverb.