请问以下句子是什么语法现象?once the fourth biggest city in the united stats,st.louis has now become the 24th largest city.

请问以下句子是什么语法现象?once the fourth biggest city in the united stats,st.louis has now become the 24th largest city. , . 中的 是什么语法现象? 关于句子love doesn't exist just because we want it to是什么语法现象麻烦再举一个同类型表达的例子谢谢了 Don’t worry, we have a little time left. 请问left什么词性,为什么是动词,还能在句尾,这是什么语法现象 动词ing+反身代词做主语的句式请问,Absorbing himself in reading,he didn't notice the teacher coming 是什么语法现象, To get to work,he takes the number 17bus to a hotel.请问to在句子的开头,是什么语法现象,咋翻译, 请问这个句子用什么语法I will check and quote a price with shipping to you once I receive the pictures or links of the tops you need?还是I will check and quote a price with shipping to you once I receive the pictures or the links of the t 天梭T-classic系列请问以下的这款天梭表是什么型号? you look beautiful是什么语法现象?还有类似的,the flowers smell great 这是什么语法现象?beautiful和great在句子里是什么成分? she does't like it,but lily does 这个does 是什么语法现象 Being with peers and friends don't necessarily solve this feeling of loneliness 是什么语法现象 It take sb.time to do sth如果句子用would take是什么语法现象? The leather was found clinging to the tree.请问这里的ing形式是什么语法现象? 请哪位朋友解释一下以下这句英语句子后半句“but it wasn't--的语法现象?The idea of becoming a writer had come to me off and on since my childhood in Bellerille,but it wasn't until my third year in high school that the possibil 德语语法现象问题Hier wird dann nochmal zugeschlagen请问这句话怎么翻译?zugeschlagen是什么语法现象?为啥加个zu? 请问yesterday once more 这首歌中文翻译是什么? I can't imagine how excited they were.请问一下为什么excited一定要提前,这个属于语法中的哪一种现象?,是词法还是语法.谢谢 请问实验现象是什么?