单选题ATo let in the sunshine.BTo serve as its door.CTo keep the nest cool.DFor the bird to lay eggs.
单选题
A
To let in the sunshine.
B
To serve as its door.
C
To keep the nest cool.
D
For the bird to lay eggs.
参考解析
解析：
细节题。从“The hole is the door of the nest.”可确定答案为B项。
细节题。从“The hole is the door of the nest.”可确定答案为B项。
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