选哪个?为什麽,解析语法点,It’s said that conference to be held in Room 223 ________till next FridayA will put off B.was put off C.has been put off D.is putting off

选哪个?为什麽,解析语法点,It’s said that conference to be held in Room 223 ________till next FridayA will put off B.was put off C.has been put off D.is putting off because it's Friday.Helen's happy变成It's Friday so Helen's happy .句子中SO的用法 是英语当中的什么语法点 麻烦知道的老师解析下 It's time 的语法 It's amazing how much it helped 语法点在哪 It's certain that it's sure that区别,语法, it's +强调部分+that、no wonder 求高手如何向别人解析这两个语法详细谢谢 It has worked well in controlling China's population.中的 has worked well 是不是语法点, It's coffee.__?It's milk.A.Who is this B.What's it.C.And what's mine D.And what's this 选哪个 It's two hours' drive和It's a two-hour drive选哪个 .it's so beautiful .it's so beautifui 哪个正确. It's been worth it讲解语法和翻译 It’s business ,it is personal.这句子语法对吗 What's the weather like in chongqing?A.It's snowing B.It's snow.请问选哪个? It's no doubt/wonder that...选哪个?为什么? It's time ( )P.E.(to of for选哪个) it's raining or it's rainy or it's rain 哪个对? It's Betty's ( twelve) birthday能不能为It's Betty's twelve ‘s birthday how are you doing怎么回答ok/ that's all right /it's nice上面三个哪个好点