题干
We ________ on Tree Planting Day last year.
A：went to plant trees
B：to plant
C：go to planted
答案(点此获取答案解析）
A
We ________ on Tree Planting Day last year.
A：went to plant trees
B：to plant
C：go to planted
上一点，则∠APB的度数为（ ）