87.　 She decided to buy a digital camera online so that it could be sent to her.

86.　 You’d better try them on first.

85.　 He wanted to start with the smallest country and end with the largest one.

84.　 He downloaded the information about several countries and made a chart.

83.　 Choose which car each of you wants to buy.

82.　 In America you can buy a used/secondhand car for as little as 300dollars.

81.　 When their cars become old, they prefer to buy a new one rather than repair it.

80.　 There will be hardly enough space for anybody else/

79.　 We can also use satellites to help us make telephone calls for foreign countries.

78.　 Man-made satellites have been sent up into space by many countries.