Too often we believe what accounts for other’s success is some special secret or a lucky break,________________(但成功却很少如此神秘).

A．According to the passage, on entering a railway compartment, an overseas visitor is expected to ________.
B．inquire about the code of behavior in the train
C．shake hands with all the passengers
D．shake hands with the person he knows
E．behave like an Englishman

A．She regretted having bought the second-hand car.
B．It is unnecessary to rent another house.
C．They should sell their second-hand car and buy a new one.
D．They can afford a second-hand car.