PDF chapter test TRY NOW

Select the right meaning from the below box:
 
Answer variants:
Emperor
Enemy
Mingle
Exchange
 
1.
 \(=\) Move among and engage with others at a social function
 
2.
 \(=\) An act of giving one thing and receiving another especially of the same kind in return
 
3
 \(=\) A sovereign ruler of an empire
 
4
 \(=\) A person who is actively opposed or hostile to someone or something