Explanation

The inverted commas part shows "perfect infinitive tense."

It is used to express an action that was completed before another action, in this case, "to have acted properly."

Explanation

Macabre means بدتمیزی

Gruesome means لرزہ خیز

"Macabre" means "gruesome."

It refers to something that is disturbing or related to the horror of death.

Explanation

The sentence should read: "The company officials felt the rising cost of health coverage was improvident enough to raise their employees' insurance premiums."

"Improvident" means lacking foresight or planning.

Explanation

The sentence that doesn't have a reduced-relative clause is: "The picture painted by your brother is really beautiful."

It contains a full relative clause, "painted by your brother," rather than a reduced form.

Explanation

The correct sentence is: "My whole family is worried because one of our cats seems to have disappeared."

"Cats" agrees with "one of" and "seems" matches the singular subject "one of our cats."

Explanation

The clear sentence is: "Too many tourists visit the cave each year. They could possibly damage the rock formations."

It correctly uses "they" to refer to tourists and clearly states the potential issue.

Explanation

"I'm at least as qualified as, if not more than, the other candidate."

"At least as qualified as" is a standard comparative construction.

"If not more than" adds the nuance that you might actually be more qualified.

The sentence flows logically and grammatically.

Explanation

The correct phrase is: "Although the sky was grey, we did go on our picnic."

"Did go" is the proper past tense form used for emphasis in this context.

Explanation

He is "vexed with" me for opposing him.

This phrase means he is annoyed or irritated with me.

Explanation

The correct tag question is: "Shouldn't they?"

It confirms the positive statement "They should have worked hard" by using the negative form of the auxiliary verb in the tag.