单项选择题

Passage One Questions 11 to 13 are based on the following passage:

A．By forcing them farming.
B．By affecting the quality of soils.
C．By adding chemicals and pollute the waterways.
D．By affecting the environments they live in.
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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.
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.
单项选择题
A．She will help him.B．She finished hers two days ago.C．She completed her work very quickly.D．She is still doing the project.
A．She will help him.
B．She finished hers two days ago.
C．She completed her work very quickly.
D．She is still doing the project.
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