Fill in the blank:The ___ of an expression is often a thing or a person in the world; whereas the ___ of an expression is not a thing at all.17/30Fill in the blank: The ___ of an expression is often a thing or a person in the world; whereas the ___ of an expression is not a thing at all.Reference/ senseReferent/ senseSense/ referentProposition/ senseGiải thíchChọn đáp án B