Question

...... he worked hard , he did not win conjuction

Answer 1

Answer: alas! he worked hard but he did not win.

Explanation:

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Answer 2

Sentence using conjunction will be-

Although he worked hard, he did not win.

Conjunctions are the words used in English grammar to perform the function of joining two sentences.

They are of three types namely, coordinating, subordinating and correlative conjunction.

"Although" is used to join two contrasting sentences. In question, contrast is present as after working so hard, he could not win.

"Although" is a type of subordinating conjunction.