It’s unwise to think ________ your boss says and does is right; we must admit nobody is perfect in the world just as the old saying goes that even the sun had a spot．

1. A.
   how ever
2. B.
   no matter how
3. C.
   whatever
4. D.
   no matter what

It’s unwise to think________your boss says and does is right; we must admit nobody is perfect in the world just as the old saying goes that even the sun had a spot.

A. how ever                  B. no matter how          C. whatever                         D. no matter what