单项选择题

It seems as if many Internet companies such as AT&T WorldNet and Yahoo ______.

A．have jumped on some kinds of cars or trucks
B．have begun their v-mail business operations
C．have started to demonstrate to the public
D．have begun their musical performance
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单项选择题
More and more people will so on appreciate v-mail service probably because ______. A) it is very efficient C) it is very cheap B) it brings a lot of fun D) it attracts young people
A．More and more people will so on appreciate v-mail service probably because ______.
B．it is very efficient
C．it brings a lot of fun
D．it is very cheap
E．it attracts young people
单项选择题
The main purpose of the passage is to show ______.
A．how the supermarket has replaced the old general store
B．how the old-fashioned general store is fast disappearing
C．how supermarket managers run modern supermarkets
D．how the role of the shop manager has undergone an overall change
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