朋友,我任务,手工输入,人工翻译,有不对之处敬请指正.
1)The house is composed of three sitting rooms.
2)I'm sorry to have kept you in trouble.
3)For teenagers ,staying up late is not healthy.
4)They are the same blood type.
造句：
树木被砍伐了.
The trees were cut down by them.
The trees were cutting down by them.
The trees have been cut down by them.
.