单项选择题

The engineer retired ______.

A．after he worked in the same company for less than 25 years
B．after he worked in different companies for 25 years
C．after he worked faithfully in the same company for over 25 years
D．after he worked heart and soul in his own company for 25 years

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单项选择题

What we can know about the retired engineer in this text

A．The retired engineer overcharged for his service.
B．The retired engineer happily went to examine the machine.
C．The retired engineer changed the broken part for a new one.
D．The retired engineer did find out what was wrong with the machine.

单项选择题

Several years after his retirement, the engineer's company ______.

A．bought a very advanced machine
B．had a very expensive machine out of order
C．placed an order for a very expensive machine
D．had difficulty destroying a very expensive machine