问英语题（达人进）Rewrite these sentences with the help of the words

问英语题（达人进）
Rewrite these sentences with the help of the words in brackets
1.What happened to Gork?(What's one's problem?)
2.We will use the laser torch to melt the bars.(do...with)
3.Peters interrupted me.(stop/make sb.stop)
4.You are silly.You said that.(It's silly of sb.to do...)