A．In many countries of the world a fixed tip is added to restaurant bills.B．In most countries of the world no fixed service charge is added to restaurant hills.C．In a few parts of the world a fixed service charge is added to restaurant bills.
A．In many countries of the world a fixed tip is added to restaurant bills.
B．In most countries of the world no fixed service charge is added to restaurant hills.
C．In a few parts of the world a fixed service charge is added to restaurant bills.