Life without leisure and (a)___(relax)___is dull. Life becomes (b)___ (charm) ___ if one does not have any time to enjoy the (c)___ (beauty)___ objects of nature.(d)___ (monotony)___ work hinders the (e)___(smooth)___of work. Leisure(f)___ (rich)___  our spirit to work. Everybody knows that (g)______ (work) is (h)__(harm)___.  Leisure does not mean (i)__(idle) ___ It gives freshness to (j) ___ (create) ___ our energy.

We are not ungrateful to the freedom fighters.

Their contribution is the greatest thing. 

An imperative sentence expresses a command, request, advice, or suggestion. It typically starts with a base form of a verb, and the subject 'you' is often understood but not stated. To form a negative imperative, 'Do not' or 'Never' is placed at the beginning of the sentence.

In the given sentence, "You should never disrespect or forget our martyrs," 'should never' indicates a strong suggestion or advice against an action. To transform this into an imperative sentence, we remove the implied subject 'you' and the auxiliary 'should', directly starting with 'Never' to convey the strong negative command or advice.

Our government has built the national memorial with a view to paying tribute to their memories. 

 (e) A freedom fighter is greater than any other son of the soil.

Our independence was got/gotten by us for their sacrifice.