地面是湿的,昨晚肯定下雨了.用英语怎么说?

网友回答

It must have rained last night,for the ground was wet.
======以下答案可供参考======
供参考答案1:
The ground is wet, it must have rained last night
供参考答案2:
The ground is wet ，because it rained yesterday
供参考答案3:
The ground is wet, it must have rained last night
.供参考答案4:
The ground is wet, it must have rained last night
追问it must have rained last night 这句话属于什么时态？供参考答案5:
the floor is wet,last night regular rained.
意：地面是湿的，昨晚肯定下雨了