单项选择题

Which of the following can best express the main idea of the passage ( )

A．Never be satisfied with what you have.
B．Start a business as a customer.
C．It is profitable to find fault with what you have.
D．To start a business is to make a fortune.

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单项选择题

While on a motoring holiday abroad you might find yourself in difficulties because ______. ( )

A．you have brought the wrong documents with you
B．your ferry has just left without you
C．the nearest phone is out of order
D．a repair to your car might take some time

单项选择题

In order to avoid disaster it would be wise ______. ( )

A．to spend five minutes checking the car before you leave
B．to carry some emergency spares with you
C．to buy a cheap set of spares before leaving
D．to prevent all breakdowns from happening