Question

I think you’ve got to the point where a change is needed , _____, you’ll fail

1. A.
   however
2. B.
   therefore
3. C.
   otherwise
4. D.
   besides

Answer 1

C
连词辨析。A. 然而，可是 B. 因此 C. 否则，另外  D.此外，而且。句意：我想你到了需要改变的时候了，否则，你会失败了。故选C。