it is snowing outside ,let us close the door to ( )the windA stay out B keep out C leave for D take out 为什么要选这个,解释清楚,拜托哦

It is snowing now.It______yesterday. Is it snowing right now? It is snowing heavily (介词) it is snowing now.it什么yesterday It is snowing very hard .同义句 It is snowy 还是snowing today IS it snowing today怎么回答 it is snowing weather 还是snowy weather It is snowing heavily now.改为感叹句 when it is snowing什么意思 it is snowing right now?right it is snowing right now? it is very cold.it is snowing h_____ It is snow in Moscow,It's snowing.大哥大姐 It is snowing now.(用tomorrow改写）It ---- ---- ----. 请问It is snowing.的述谓结构是什么?是BE(SNOWING)吗?还是（SNOW）? It is snowing very hard.它的汉语意思 It's snowing .The ground is c( ) with snow it is snowing,i will make a snownan对吗