1、Now she won't have to go out to work any more.现在她不必再出去工作了。

2、I think we should go back to first principles.我认为我们应该回到基本原则上。

3、He had to go to the hospital for treatment.他不得不去医院接受治疗。

4、Why don't we go and see it together?咱们为什么不一起去看看呢