Read the next paragraph and choose the best option to complete each blank. Use the passive voice in simple present to answer this exercise.


BUYING BY INTERNET
 
You have probably seen ads in newspapers or TV. for mail-order firms. Perhaps a catalogue (1) _______ (send) to you. Why do people buy things they haven’t seen in person? Some people believe that things (2) _________ (buy) more cheaply by mail. Another advantage of buying by mail is that it is more comfortable to sit at home and look through a catalogue than to rush around the stores. With a catalogue from a large firm, you have your own shop window for almost everything you want to buy.
 
Buying from a catalogue is very easy and time and trouble (3) _____ (save) by the shopper. Sometimes it saves the shopper money on one item. But people often buy more than they want because they can buy on time. They perhaps pay a certain percent of the total price – a down payment. Then they pay a certain amount of money every month until the merchandise (4) _______ completely (5) ________ (pay).