问题
What a beautiful city our hometown is! There are many trees ___________ of the road! — Yes, and ____________ of the trees is growing larger and larger.
A:on both side; a number
B:on each sides; a number
C:on both sides; the number
D:on every side; the number
B:on each sides; a number
C:on both sides; the number
D:on every side; the number
正确答案是：
