He is known _____ his being on time, so we don’t know the reason ____ his being late this time.

A. for; of         B. as; for         C. for; for       D. of; of

He is known _____ his being on time, so we don’t know the reason ____ his being late this time.

A. for; of??? ???? B. as; for???????? C. for; for?????? D. of; of

He is known _____ his being on time, so we don’t know the reason ____ his being late this time.

 A. for; of         B. as; for         C. for; for       D. of; of

He is known _____ his being on time, so we don’t know the reason ____ his being late this time.

1. A.
   for; of
2. B.
   as; for
3. C.
   for; for
4. D.
   of; of

He is known _____ his being on time, so we don’t know the reason ____ his being late this time.

 A. for; of         B. as; for         C. for; for       D. of; of