_____the ability of birds to move through the air using wings and feathers.A、Fli

游客2024-01-02 39

问题 _____the ability of birds to move through the air using wings and feathers.

选项 A、Flight
B、It is flight
C、As if flight
D、Flight is

答案 D

解析 The sentence needs a subject and a verb: Flight is.

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