单项选择题

A．How birds’ nests have evolved.
B．Why some birds’ nests am considered primitive.
C．How birds learn to build nests.
D．Why birds lay eggs.
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单项选择题
A．Searching for reference material.B．Watching a film of the 1930s’.C．Writing a course book.D．Looking for a job in a movie studio.
A．Searching for reference material.
B．Watching a film of the 1930s’.
C．Writing a course book.
D．Looking for a job in a movie studio.
单项选择题
A．They strongly believe in family rules.B．They are very likely to succeed in life.C．They tend to take responsibility for themselves.D．They are in the habit of obeying their parents.
A．They strongly believe in family rules.
B．They are very likely to succeed in life.
C．They tend to take responsibility for themselves.
D．They are in the habit of obeying their parents.
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