The reading of books is a good practice, In this sentence, `the reading of` is a-
gerund
verbal noun
Participle
adjective
Explanation:
Correct Answer is: verbal noun

gerund
verbal noun
Participle
adjective
Correct Answer is: verbal noun

There has been a breakthrough in the treatment of dengue. Here `breakthrough` is a/an: Option A: adjective , Option B: verb , Option C: noun, Option D: adverb, correct answer is: noun
I prefer tea - milk. Option A: than , Option B: then , Option C: to, Option D: more, correct answer is: to
Recently which country has allowed women to serve in armed forces? Option A: Done , Option B: Skip , Option C: undefined, Option D: undefined, correct answer is: Done
Suppose you are a staff reporter of a daily newspaper. Write a report on the sources of air pollution in Bangladesh. Option A: Done , Option B: Skip , Option C: undefined, Option D: undefined, correct answer is: Done
He runs fast. Here `fast` is- Option A: a verb , Option B: an adjective , Option C: an adverb, Option D: a conjunction, correct answer is: an adverb