Question

He worked hard,___ he couldn't get a rank.(appropriate linkesrs)​

Answer 1

the answers can be: but, though.

Answer 2

Answer:

He worked hard, but he couldn’t get a rank.

Explanation:

In a sentence, 'but' can be used as conjunction, preposition, adverb, noun depending upon its position in a sentence.

In a noun form, as an objection in a sentence like an example:  

• Ask Ram to leave, I need no buts as an explanation from him.

When 'but' represents as preposition like:

• Our teacher was never anything but strict.

So, 'but' is a word that is used for connecting two different opposite meanings in a sentence.