The book was written by a famous author last year.（这本书是一位著名作家去年写的。）

The window was broken by the naughty boy just now.（窗户刚刚被那个调皮的男孩打破了。）

A lot of beautiful songs are sung by her at the concert every time.（每次音乐会上很多动听的歌曲都是由她演唱的。）

The old house will be pulled down next month.（这座老房子下个月将被拆除。）

My bike has been repaired by my father already.（我的自行车已经被我爸爸修好了。）

These clothes should be washed by hand.（这些衣服应该用手洗。）

The letter was sent to him two days ago.（这封信两天前就寄给他了。）

The new plan is being discussed by the managers now.（新计划现在正被经理们讨论着。）

The problem has been solved by the clever girl.（这个问题已经被那个聪明的女孩解决了。）

The trees in the park are watered by the workers every day.（公园里的树每天都由工人们浇水。）

The movie was watched by millions of people around the world.（这部电影被全世界数百万人观看。）

The cake will be made by my mother for my birthday.（生日蛋糕将由我妈妈为我制作。）

The classroom must be cleaned before we leave school.（我们离开学校前教室必须被打扫干净。）

The toys were played with by the children all afternoon.（孩子们整个下午都在玩这些玩具。）

The report has been finished by Tom ahead of time.（这份报告已经被汤姆提前完成了。）

The piano is played beautifully by the young pianist.（这架钢琴被这位年轻的钢琴家弹奏得非常美妙。）

The sports meeting was held in our school last week.（运动会上周在我们学校举行了。）

The clothes are ironed by my sister every weekend.（我姐姐每个周末都会熨烫衣服。）

The story was told to us by our grandmother last night.（昨晚奶奶给我们讲了这个故事。）

The project will be completed by the team in two weeks.（这个项目将在两周内由这个团队完成。

）