The lovely boy often (分享) his toys with other kids.
They are buying a car and want to get it as (便宜) as they can.
I believe exercise and (新鲜的)air are good for our health.
It's important for teenagers to have good (习惯)
Jack looked through the (介绍)about the book before he decided to buy it.
Students should answer questions loudly and (清楚)in class.