問題詳情:
A lot of trees ______ on the hill yesterday.
A. are planted B. will be planted C. have been planted D. were planted
【回答】
D
解析:考查被動語態。由時間狀語yesterday可知,用一般過去時,由trees和plant構成被動關係,用一般過時的被動語態
知識點:動詞時態
題型:選擇題