怎么合并含有定语从句的复合句

1、A car crashed into mine。It was red。A car that was red crashed into mine。2、I spoke to an assistant。She had long,dark hair。I spoke to an assistant who has long,dark hair。3、David writes books。They are translated into many languages。David writes books which are translated into many languages。4、I was talking to some people。They are friends of your father's 。I was talking to some people who are friends of your father's。5、I worked in a shop。It was called “Bangles” 。I worked in a shop which was called "Bangles"