Question

________ that my head had cleared, my brain was also beginning to work much better．

1. A.
   For
2. B.
   Now
3. C.
   Since
4. D.
   Despite

Answer 1

B
for, since表示“因为，由于”，不和that连用，故排除。now that意为“既然，由于”；despite为介词表示“尽管，任凭”等不能引导从句，故排除。故选B项。