主语:1。what's wrong with you? 2. what's the trouble with you? 中的what在句中做主语.这就是陈述句的语序. 像What's the matter?一样 改宾语从句不要调整. 如:I don't know what's the matter 而不是.I don't know what the matter is 。
表语 3. who are you? 4. who's the girl? 中who做表语,如3的结构改陈述句应是:You are who.(主系表) 在宾语从句中要倒装.如: I don't know who you are. I don't know who the girl is.
5. what's the weather like?中the weather做主语.改陈述:The weather is like what? 所以what做表语.改宾语从句要倒装. I don't know what the weather is like.