Explanation

A passive sentence emphasizes the object of the action (the persons).

In the original sentence, "The road accident" is the subject, actively performing the action of killing.

To make it passive, the object ("seven persons") becomes the subject, and the verb is changed to a form of "be" with the past participle ("killed").

Option (A) correctly reflects this structure. 

Explanation

Present continuous "is facing" is used for an ongoing issue.

Explanation

 The gerund "reading" is used after "like" when talking about a general habit.

Explanation

 The preposition "on" is used to specify the exact date or day of the week, and it is also used when referring to a particular year.

Therefore, it is correct to say "born on August 19" and "born on 1990".

Explanation

The past perfect tense requires "had" plus the past participle of the verb.

The past participle of "be" is "been".

Nothing had been done by them.

Explanation

  Passive voice is used here.

The correct past participle form is "spoken."

Explanation

The correct infinitive structure after "asked us" is "to wait.

Explanation

We use "a little" with uncountable nouns like "French" (as a language).

It means "some" or "a small amount."

Explanation

Explanation

 "Though I am afraid of dogs, my sister, however lets her dog without a leash." 

Explanation:

"Though"

is used to introduce a clause that is in contrast to the main clause. 

"However"

is used to introduce an adverbial that contrasts the previous statement.