Sentences of a paragraph are given below. While the first sentence (S1) is in the correct order, the sentences below it jumbled up. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.

S1. A man was on his way to the next village.

A.  It was not possible for him to go across before nightfall.

B. As evening fell, he found himself close to a river.

C. So, he decided to wait till daybreak and then continue his journey.

D. He found a place under a tree and lay down to sleep.