景观设施的概念
参考答案：
景观设施是指公共环境或街道社区中为人的行为和活动提供方便条件并具有一定质量保障的各种公用服务设施系统，以及相应的识别系统
句型转换。
1.They spent 3 hours planting the trees.（改为同义句）
It them 3 hours the trees.
2.I'm allowed to buy books once a week. ( 对画线部分提问)
are you allowed to buy books?
3.He can finish the work in two days. (改为被动语态)
The work in two days.
4.I think you should choose your own clothes.
I you should choose your own clothes.
5.My parents allow me to go to the movies on weekends. (对画线部分提问)
your parents allow you to on weekends?
