单项选择题

The United States and Canada have agreed ________in regard to the Great Lakes.

A．to eliminate swimming entirely
B．to limit boating and fishing
C．to limit phosphates and detergents
D．to kill all algae
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单项选择题
What does the woman mean
A．She hasn’’t read the passage.
B．She doesn’’t understand it either.
C．She cannot read it in darkness.
D．She suggests that the man read it.
单项选择题
The woman’’s last inquiry is mainly concerned with________.
A．the time needed for sending the parcel
B．the flight time to New York
C．the parcel destination
D．parcel collection
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