It was ___ it was raining so hard that we had to stay at  home all day.

1. A.
   since
2. B.
   for
3. C.
   as
4. D.
   because

It was ___ it was raining so hard that we had to stay at  home all day.

A. since            B .for                  C. as              D. because

It was ___ it was raining so hard that we had to stay at home all day    

 A. since          B .for          C. as           D. because

It was ___ it was raining so hard that we had to stay at  home all day.