单项选择题

The snakehead is very perilous because it ______.

A．has rows of sharp teeth
B．can dart out of hiding holes to chase, and catch
C．may devour every other fish in the lake or pond
D．is regarded as top predator

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单项选择题

Judging from the context, the big green lady (Line 1, Paragraph 1) refers to ______.

A．a lady in charge of the harbor
B．the symbol of New York City
C．the statue of liberty
D．a famous American woman

单项选择题

What was the trouble with New York last month

A．It has a hard time getting immigrants to the city.
B．Some terrible creatures were discovered in Maryland.
C．The whole Maryland pond was poisoned.
D．Five big northern snakehead were found in Queens.