Read the sentence and fill in the blank.

……… some employers oppose the very existence of unions, many theorists stress the necessity of unions.

Farhana speaks English fluently; -----, she knows French.

Identify the conjunction in the sentence ' $I$ will go to the market like I am invisible'.

— trying hard, the boy couldn't succeed.

………the rise in unemployment in cities more and more, people continue to move to urban centres.