1.His problem began when he was a child .他的这个问题起始于孩提时代。

2.When hard tactics failed , soft methods were used .硬的不行来软的。

3.I was just going to speak, when the bell rang .我刚要讲，钟就响了。

4.When can you take delivery of the car ?你什么时候才能收到那辆汽车？5.When the boss falls from power , his lackeys disperse .树倒猢狲散。