Explanation

Inquire into is the phrasal verb which means to investigate.

Inquire into the matter means معاملے کی تحقیقات کرنا

Explanation

Road accidents happen because people do not follow traffic rules. 

Happen is a verb which means پیش آنا

Because shows a reason.

Because means کیوںکہ

AGM 20 01 23

Explanation

Along is a preposition

Here, along shows the movement of the dog.

The sentence states that the dog ran in the direction of the road.

The dog ran along the road. 

Explanation

 "You must quit smoking or it will damage your lungs."

Must → Strong obligation or necessity. Best fit in this sentence for urgency.

Explanation

The action "when I saw him" is in the past, so the ongoing past action should use past continuous tense.

"Was learning" correctly matches the timing and form.

Explanation

Usually Article the is used with parts of body name.

She was wounded in the leg. 

Explanation

Different takes preposition from.

Different from others means دوسروں سے الگ 

Explanation

Preposition For is used to indicate the use of something.

For Aids, For plague, For diseases etc.

Explanation

I have already Taken three cups of coffee. 

Take is the first and taken is the third form of a verb.

This is sentence of Present Perfect Tense. 

Explanation

Differ from means الگ ہونا

She differs from me in habits.