单项选择题

A．Call on people to protect sharks.
B．Point out the living environment of sharks.
C．Explain why the sharks are dangerous.
D．An introduction to sharks.
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单项选择题
A．The movie’’s storyline is completely absurd.B．The storyline is fantastic.C．The storyline is exciting.D．The storyline is awesome.
A．The movie’’s storyline is completely absurd.
B．The storyline is fantastic.
C．The storyline is exciting.
D．The storyline is awesome.
单项选择题
A．Professor and student.B．A college boy and a college girl.C．Two college boys.D．Husband and wife.
A．Professor and student.
B．A college boy and a college girl.
C．Two college boys.
D．Husband and wife.
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