It is snowing ___(heavy) now. China has a history of five ___(thousand) years.We have different kinds of ___(scarf) Where is Miss liu? She ___ (sit) in the office. 请说明原因（根据某些词来确定空的形式,结合一些语法,来分

It is snowing today.(同义句转换)Today ___ ___ It is snowing now.It______yesterday. Is it snowing right now? It is snowing heavily (介词) 同义句转换 You're kind to say so.___kind___ ___to say so.He usually uses a pen to write.He usually ___ ___a pen.Mike is 13 years old.Mikeis ___ ___boy.It was snowing,but it was not very cold.It was not very cold___it was snowing. 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_____ There was a ___ snow last night ,and it is still snowing ___ now.A.heavy;heavyily B.heavy;heavyC.heavyily;heavy D.heavyily;heavyily 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）?