I left for the office earlier than usual this morning _____ traffic jam.

   A. in line with                                B. in case of

   C. for the sake of                            D. at the risk of

I left for the office earlier than usual this morning ______ traffic jam.

    A.in line with    B.for the sake of    C. in case of     D. at the risk of

I left for the office earlier than usual this morning _____ traffic jam.

   A. in line with                    B. in case of

   C. for the sake of                  D. at the risk of

I left for the office earlier than usual this morning _____ traffic jam.

A. in line with 　　B. in case of 　 C. for the sake of 　　D. at the risk of

I left for the office earlier than usual this morning _____ traffic jam.

1. A.
   in line with
2. B.
   in case of
3. C.
   for the sake of
4. D.
   at the risk of