— Tree Planting Day is coming. Do you pl
题型：选择题
问题：
— Tree Planting Day is coming. Do you plant trees in spring?
— Yes, many trees _____ in our city every year. [ ]
A. are planting
B. are planted
C. were planted
— Tree Planting Day is coming. Do you plant trees in spring?
— Yes, many trees _____ in our city every year. [ ]
A. are planting
B. are planted
C. were planted