单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．They are difficult to read.
B．They are slowly falling apart.
C．They were not made from wood pulp.
D．They should be stored in a cold place.
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单项选择题
A．The door needs repairing.B．He had lost all his keys.C．He couldn’t open the door.D．He wanted the woman to help him.
A．The door needs repairing.
B．He had lost all his keys.
C．He couldn’t open the door.
D．He wanted the woman to help him.
单项选择题
A．It is not as difficult as she had thought it would be.B．She would like her professor to explain it more clearly,C．She took a class on it last semester.D．Her professor will write a book on it soon.
A．It is not as difficult as she had thought it would be.
B．She would like her professor to explain it more clearly,
C．She took a class on it last semester.
D．Her professor will write a book on it soon.
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