In the following passage some wordshave been deleted. Fill in the blanks with the help of the alternatives given.
Passage:

Suppose you have to make a paymentof Rs. 100, you can do so in coins; but it would be ..........(1) to pay in nickel or copper coins, because it takes much time to ..........(2) them. The government .........(3) permits you to make the payment in ..........(4) Whatare these notes really? They are a kind of moneyalthough they are made of ...........(5) instead of metal.