The workers didn't find out what was the matter with the mac
The workers didn't find out what was the matter with the machine 这句话对吗/不对如何改正? The workers didn't find out what was the matter with the machine 这句话对吗/不对,如何改正?如果"what is your trouble "作宾语从句如何处理?
The workers didn't find out what was the matter with the machine 这句话不对,应修改成 The workers didn't find out what the matter with the machine what is your trouble "作宾语从句应写为what your trouble is?
第一句应该是The workers didn't find out what the matter WAS with the machine. 若换成"what is your trouble",则变为了The workers didn't find out what your trouble WAS.