单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．The erupted lava.
B．The destructive ash.
C．The unbearable beat.
D．The poisonous gas.
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单项选择题
A．Because the subway is faster though less direct.B．Because the subway is less expensive and fast.C．Because the bus is direct though expensive.D．Because there is a traffic jam underground.
A．Because the subway is faster though less direct.
B．Because the subway is less expensive and fast.
C．Because the bus is direct though expensive.
D．Because there is a traffic jam underground.
单项选择题
A．The manual is of no use.B．There are some parts missing.C．An hour is not enough.D．He can’t understand the manual.
A．The manual is of no use.
B．There are some parts missing.
C．An hour is not enough.
D．He can’t understand the manual.
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