In winter,the weather in Hainan is much warmer than that in Beijing.请问这句话里的that可省吗

In winter,the weather g_____cold 在冬天in winter 还还是in the winter on the snowy winter 还是in the snowy winter during the winter holidays是否等于in the winter holidays the weather is cold （ ）.A,winter B,in winter C,at winter D,for winter the weather is cold ( ).A,winter B,in winter C,at winter D,for winter Leaves in the trees f___ in winter. 在冬天:A.in winter B.in the winter C.during winter D.during the winter是哪一个哦？ 上海的天气和北京的很不一样.汉译英The　weathe　in　Shanghai　＿　＿　＿　＿　＿in　Beijing． The terrible weathe l to the traffic accident 实在想不起来 what's the weather like in winter? The most interesting thing in Winter holidayOK? What's the weather like in winter? How is the weather in winter? what'the weather like in winter是什么意思 The weather in winter is______[snow,snowy] They sleep in the winter是什么意思 Is the weather cold in winter