Explanation

"For" indicates purpose or reason.

The phrase "for your safety" means to ensure you stay safe.

Explanation

"For a while" indicates a duration of time (how long the action continued).

Example: "I have been ringing the doorbell for a while."

"For" + time period = Duration (e.g., for hours, for days).

"Since" + specific time = Start point (e.g., since morning).

Explanation

The phrase "suggestions for improving" is the correct collocation.

Correct sentence: "The rest of the class listened carefully and gave suggestions for improving the plan."

Explanation

Explanation

Correct sentence: "Ali went to the factory by himself."

"To" shows direction, "by himself" shows he went alone.

Explanation

"Near" indicates proximity, meaning the store is close to the park.

Example: "The store is near the park."

Explanation

The correct phrase is "rest for two weeks" — "for" indicates the duration of time.

"For" is commonly used when referring to a period (e.g., for a day, for a month).

Explanation

Explanation

The correct phrase is "beg forgiveness of someone", meaning to ask that person for pardon.

So, "beg forgiveness of this gentleman" is grammatically correct and idiomatic.

Explanation