practice for ,need to do,need doing 造句

He has been in practice for twenty years.
他已有20年的实践经验.
We need to do something to relax.
我们需要做些事情来放松放松.
It has many works to need doing.
有很多事情需要去做.
希望能够帮到你!

Next is thorough practice for six months.
接下来是六个月的深入实习。
Did they need to do it yesterday?
他们昨天需要做那件事情吗？
It has many works to need doing.
有很多事情需要去做。