Flowers and trees every year. Now our city is getting more and more beautiful.A. are plan

问题补充：

Flowers and trees every year. Now our city is getting more and more beautiful.

A. are planted

B. were planted

C. have planted

D. were planting

答案：

(答案→)A. are planted

B. were planted

C. have planted

D. were planting

解析：句意：每年鲜花和树木都被种植。现在我们城市变得越来越漂亮。根据鲜花和树木应该是被种植，可知需用被动语态，被动语态的构成是be +过去分词，故选A。