People in the west make ____ a rule to buy Christmas presents for their relatives and friends. [ ]

I don’t like to go to the concert I have no interest in it; ______, I have lots of work to do [ ]

I’m ______hungry. Could I have something to eat

Having worked nonstop for three hours in the sun, John returned home, ______.

What a pity! Considering his intelligence and diligence, he ________ a higher grade.[ ]