单项选择题

A．The local Africans are peace-loving people.
B．Soda bottles are very precious in some remote areas.
C．A trivial thing may sometimes bring about undesirable consequences.
D．Caution must be taken in introducing new technology.
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单项选择题
A．Teach Don’’s class while he’’s absent.B．Give Professor Webster the key to Don’’s office.C．Leave a message on the board in Don’’s classroom.D．Bring Don the homework that was due today.
A．Teach Don’’s class while he’’s absent.
B．Give Professor Webster the key to Don’’s office.
C．Leave a message on the board in Don’’s classroom.
D．Bring Don the homework that was due today.
单项选择题
A．Lose weight.B．Quit smoking.C．Weight himself frequently.D．Have a talk with the doctor.
A．Lose weight.
B．Quit smoking.
C．Weight himself frequently.
D．Have a talk with the doctor.
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