英语造句 标号序号 要求：语法正确

1.The plane is flying at a high altitude.飞机在很高的高度飞行.
2.You make this problem difficult to solve.你使得这个问题很难解决.
3.The machine works in bad/good condition.这台机器工作不好/良好.
4.I like fruits,and apples in particular.我喜欢水果,特别是苹果.
5.It is my considered opinion that you are wrong.我经过考虑认为你是错的.
6.On average,babies start walking at one year old.一般,婴儿在一岁的时候开始学走路.
7.The door handle came off my hand.门的把手脱落在我的手上.
8.I play football every two weeks.我每两个星期踢次足球.
9.In theory,it is right.理论上,它是对的.
10.It isn't a good idea in pratice.实际上,它不是一个好主意.