A、 Withdraw as much money from the bank as he wishes.
B、 Obtain more convenient services than other people do.
C、 Enjoy greater trust from the storekeeper.
D、 Cash money wherever he wishes to.

【正确答案】 B

【答案解析】解析：文章开头点明credit cards(信用卡)可以使其拥有者随时随地消费，之后又用these conveniences进行总结，故答案为B。

A、 It's still on the horizon.
B、 It's far from entering their life.
C、 It's already here with them.
D、 It's only a beautiful dream.

【正确答案】 C

【答案解析】解析：本题考查对细节的记忆。根据not on the horizon与it's already here可得出答案为C。此外，A、B、D含义相近，可一并排除。

A、 Use of computers in banks.
B、 Conveniences brought about by computers in business.
C、 Significance of automation in commercial enterprises.
D、 Credit cards in the business world.

【正确答案】 B

【答案解析】解析：由选项预测本题可能是主旨题。根据conveniences to consumers和many advantages for sellers too总结出B为答案。