Many trees and flowers ______ in our school last year, and they made our school a beautiful garden.
A.plant
B.planted
C.have planted
D.were planted
网友回答
D解析考查语态。句意为:去年我们学校种植了许多树和花,这些树和花使我们的学校成了一个美丽的花园。句中主语是Many trees and flowers是动作的承受者,因此用被动语态,A、B、C都是主动语态形式,不合题意。故选择D。