题目内容
【题目】―Lots of trees and flowers on both sides of Huanshan Road last year.
―Oh, that’s beautiful.
A. are planted B. were planting
C. were planted D. have
【答案】C
【解析】试题分析：句意：去年环山公路的两边种了很多的树和花。当主语是动作的承受者时，用被动语态，由last year可知用一般过去时。结合句意，故选C
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