题目内容
20．Many trees and flowers ______ in our school last year and they made our school a beautiful garden．（ ）| A． | have planted | B． | are planted | C． | were planted | D． | will be planted |
分析 去年在我们学校种了许多树和花，它们使我们学校成了一座美丽的花园．
解答 答案：C 根据Many trees and flowers ______ in our school last year．可知这句话的主语是Many trees and flowers，是动作的承受者，它和动词plant构成被动关系，所以应该用被动语态．根据last year，可知应该用一般过去时的被动语态．一般过去时的被动语态的构成：was/were+及物动词的过去分词．所以应该是were planted，故选：C．
点评 主要考查被动语态，当句子的主语是动作的承受者时，应该用被动语态，本题考查的是一般过去时态的被动语态．一定注意其构成形式，一般过去时的被动语态的构成：was/were+及物动词的过去分词．
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