The correct answer is choice (B). The question sentence is in the simple present and hence the answer should also be in the simple present tense. In choice (A) the continuous tense is used which makes it an incorrect choice. ‘Were’ in choice (C) is in the past tense, making it an incorrect choice. ‘Have been’ in (D) is present perfect tense, which makes the choice incorrect.

Option (B) is the right passive voice form of the active voice.

The active voice is rightly turned into the passive voice in option (A). Other options aren’t right.

The statement is in the passive voice and its active voice form is in option (D). Other options violate the rules of grammar.

The right answer under the given options is(D)

The active voice is turned into its passive in option (B) Wrong auxiliaries are used in other options.

The active voice is an interrogative sentence and so should the passive voice sentence be. There are question marks at the end of the sentences. The right passive option is (B). Other options do not follow all the rules of the switch.

The active voice is correctly turned into its passive voice form in option (B). Other options break the rules of the game.

The statement is in the active voice and its passive counterpart is option (B). Options (A), (C) and (D) deviate from grammar and the rules of transformation.

The statement is in the active voice and the right passive voice is given in option (D). Other options break the rules of grammar.

The statement is in the active voice and the correct passive voice is in option (A). All the rules of the transformation from active to passive are kept.

The first statement is in the passive voice and its active voice is option (A). All the rules of the switch from passive to active are kept.

The question in the active voice is rightly turned into a question in the passive in (A). Other options (B) to (D) break the rules of grammar. The correct option is (A).

In the last sentence the parents given their reason for recommending “Pride and Prejudice”. They say there is a strong moral consideration/content in the action by one of the characters of the novel. The right word is (D) “consideration.” Since the parents wanted stories and other content with high moral qualities, they recommended these two English classics, namely “The Christmas Carol” and Pride and Prejudice”.

The choice of Jane Austen’s novel “Pride and Prejudice” was unexpected because there is romance in it which will attract youngsters, not children. But the parents had other reason for recommending this novel. The right choice is (B) “attract”.

Another adjective is © “unexpected” which can modify the noun “choice”. This adjective is a predicative adjective because it is placed far away from and after the noun it qualities.

The next adjective should quality the noun “read” and only (D) “credible” can do the job well. So the correct word is (D) “credible”.

An adjective descriptive of Scrooge fits the blank. Of the four choices, © “stingy” fits the blank the most. “Stingy” means “being unwilling to spend money; being miserly.” Scrroge in fact was stingy in the play initially. 

Most of the two thousand parents who were interviewed in the survey recommended “The Christmas Carol” which their children should read without fail. The parents approved of the moral content of the play and perhaps they wanted the children to imbibe it. The apt word for this blank is (D) “recommended”.

The survey conducted led to the revelations that parents wanted their children to rad books with high moral content. That is, stories and other contents of the books they read should have strong morality, ethics and may be principles to shape the conduct and future of their children. So the apt word for the third blank is (D) "content." "Content" is what is contained in something such as a story, a book, poem, package, etc.

Surveys have a purpose: to unearth something, to investigate something, to study something in depth; examine or understand something or to start or do research, etc. The survey that was conducted succeeded in revealing something which remained unknown or unheard of untill the revelations were brought out. The apt word for the second blank is (B) "revealed." So the survey has revealed something.

The right word to collocate with the noun "survey" is (D) "conducted". None of the other verbs can collocate with the noun. Surveys are conducted and they can be online, face-to-face, through questionnaires, through long interviews, etc.

The right word to fit the blank is (C) “comfortable”. The last sentence has brought home the truth of generational gap. The meaning of “comfortable” is confident and not worried or afraid”.

In this blank and sentence the author is dealing with the status of the youngsters’ ability to handle hardware and software. New hardware and software packages are designed and marketed all the time. The consequence is that over time the youngsters’ ability will fade or decrease and their children will become adapt at handling them. The correct word is (C) “decrease”.

The author of the piece is now turning to taking to task the youngsters who have criticized their elders. But it won’t be long before the youngsters’ ability becomes outmoded and useless. The author is urging some restraint on their part. The word to fit the blank is (B) “ability”. Abilities have a limited shelf life and are a perishable commodity in some senses.

The preposition to fit the prepositional phrase is “in”, not any other preposition. The correct word is (B) “in”.

It’s easy for youngsters to criticize their parents and adults for their inability to operate a computer , a DVD player, etc. Ability to use comes with practice and willingness to adapt to change. Youngsters will ridicule their adult’s lack of knowledge or ability to handle the new gadgets, devices, etc. The right word is © “lack”.

Some adults, parents or seniors have yet to get used to operating a computer, a DVD player, etc., because they find these complicated. The right word for the blank is (D) “complicated.”

It’s teenagers who constantly operate and manipulate gadgets, computers and other devices and become more comfortable and confident in operating them. They know how to turn on a DVD player, how to boot a computer and how to operate a new mobile. They are more comfortable and at ease with these devices and gadgets which the adults find it difficult to handle. The suitable word is (A) “operating”.