which city is Mrs.John leaving for ____{看} her son tomorrow.我知道用to do 形式 为什么还有这肯定是定语从句，能分析一下先行词什么的吗

Which city is very coid? Which city is very coid? which city is called the city of water Which city is callde the city of fog? which city is in the north of city? Which city is the capital of france which city is the capital of thailand? which is the capital city of Australia? which city is your school in? which city danger is not talked about? which city Which city is （hot）,Nanjing or ShanghaiWhich city is （hot）,Nanjing or Shanghai? The CN Tower is the symbol of the city of toronto,which is a city of[ ] Which is the capital city of the USA? 翻译：Which part of the country is the city in ( ) city is the capital of USA 填 Which 还是What which country is the homeland the city of Which city is the capital of france?翻译