英语中逗号It began to rain ,so we had to stay here.It began to rain so we had to stay here.这两个句子哪个对啊?为什么?在什么情况下,连词前面加逗号呢?

英语中逗号It began to rain ,so we had to stay here.It began to rain so we had to stay here.这两个句子哪个对啊?为什么?在什么情况下,连词前面加逗号呢? it began to rain,句中it如何理解?麻烦好心人回答.while they are talking it began to rain. 句型转换he likes swimming but he doesn't like to swim this afternoon_____he likes swimming ,he doesn't like to swim this afternoon2.she was walking on the street .Suddenly it began to rain heavilyshe was walking on the street _____it began to rai 法语中.rai啥意思? 音乐中 pop-rai是什么意思? It ()five years()i began to study Englishis,began为什么 I am sorry you can not take that train it( )ten minutes agoA left B was leaving C will leave D leaves( )i was watching tv at nine last night ,there was a loud knock at the door A because B when C while D ifi was thinking about ( )when it began to rai while they were talking it began to rain and Dimitri stayed in Aleko's house until the rain这句话中while they were talking it began to It began to blow hard beford minight 英语中逗号的用法? it began to rain before she took a taxi中took该怎么解释啊? 英语中逗号和中文逗号用法有什么区别? 英语中逗号和中文逗号有什么区别? Mai pen rai在泰语中是什么意思? 请问英语中逗号后面的doing表什么意思?并列?目的?连接?1.He took colour to a new level,using it to create...2.Splashes of colour are everywhere among the pink buildings,including the garish... one afternoon,he was leaving school when it began to rain.中,为什么要用was leaving啊? 英语中哪些情况下使用逗号 在英语中有逗号吗?