The playground is wet this morning.It must rain last night.i

The playground is wet this morning.It must rain last night.i The playground is wet this morning.It must rain last night.（ Since the road is wet this morning,---------last night. 英语翻译It must have rained last night ,for the road is wet this I think it must be rainy last night.You see,the g___ is wet. it must have rained last night,__the ground is wet this morn It must have rained last night _____the road is wet The ground is really wet,it must-------last night.为什么填have r It must have rained last night,__ the ground is wet . The ground is so wet,It must have rained last night The ground is wet ,so it must have rained last night,（ Since the road is wet this morning,_____last night.