Fill in the gaps in the following text by adding suffix, prefix or both with the root words given in the brackets.

Sound health is the (a) _____ (come) of physical exercise in a regulated form. (b) _____ (regulate) form of exercise or over-exercise is injurious to health. Remember that if you take physical exercise, you must not be irregular Physical exercise increases our appetite and improves digestive power. If anybody suffers from (c) ______ (digest) he should take physical exercise. Proper digestion of food removes his loss of appetite. Physical exercise removes (d) _____ (constipate) and helps proper blood (e) _______ (circulate).

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.