精选优质文档-倾情为你奉上 8A 期末复习错题集 姓名 _一.单项选择题。( )1.I think _necessary for us _the birds. A.it; perfect B.its ;to perfect C.its ;protecting D.it; to protect( )2.We must try our best to stop the pollution_a happy life. A. to live B.from living C.living D.live( )3.He_the importance of their visit _the small town. A.dont understand;to B. doesnt understand;at C.doesnt understand ; to D.didnt unders
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