单项选择题

It can be inferred from the passage that the courtship of great horned owls ______.

A．takes place on the ground
B．is an active process
C．happens in the hall
D．involves the males alone

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单项选择题

According to the passage, great horned owls______.

A．are good nest builders
B．need big nests for their numerous eggs
C．may inhabit a previously used nest
D．build nests on tree limbs

单项选择题

According to the passage, young owlets eat everything EXCEPT ______.

A．other small birds
B．insects
C．small mammals
D．nuts and seeds

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