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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填空题
When unemployed, some careerists take the opportunity to ___________________ family matters in addition to pursuing training or volunteering.
单项选择题
A．Buy a ticket.B．Leave at once.C．Get ready immediately.D．Call a taxi.
A．Buy a ticket.
B．Leave at once.
C．Get ready immediately.
D．Call a taxi.
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