求英语造句.用下列单词各造一个不少于10个单词的句子.本人水平较差,

有些字数可能不到10个的,但你可以根据意思自己加几个词进去,这样可以吗?
1.The police have been unable to find any trace of the gang.
警方一直未能找到那团伙的任何踪迹.
2.Their celebrations at Christmas are not unlike our own.
他们的圣诞节庆祝活动跟我们自己的并无不同.
3.I enjoy getting involved in things in my community.
我喜欢参与我社区的事情.
4.The meeting mostly concerned trade and agriculture.
这次会议主要与贸易和农业有关.
5.hearing Martin's confused sorrows turned to optimism.
马丁混乱的懊丧心情变成了乐观情绪.
6.The two of them politely exchanged whispers,and then they all went home.
两人很客气地小声说了几句话,然后他们都回家了.
7.We must limit the expense to what we can really afford.
我们必须把费用限制在我们经济能力范围内.
8.Conciliation may be applied in handling a suit for damages.
赔偿诉讼可以适用调解.
9.Safety has high priority in factories,so we must take account of it.
工厂里安全至关重要,所以我们必须重视它.
10.The convicts undermined the prison wall and escaped.
囚犯们在监狱墙下挖地道逃跑了.