题目
(2022·天津)A lot of birds ______ in nature parks every year.
A.
protect
B.
is protected
C.
are protected
D.
protected
知识点:一般现在时的被动语态章节:句法 / 被动语态
(2022·天津)A lot of birds ______ in nature parks every year.
protect
is protected
are protected
protected
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