There is no doubt that he is a good professor__________he is doing fine.

1. A.
   but
2. B.
   because
3. C.
   so
4. D.
   yet

There is no doubt that he is a good professor, ________ he is doing fine.

A. for

B. but

C. so

D. yet

A. for

B. but

C. so

D. yet

There is no doubt that he is a good professor__________he is doing fine.?

A.but                    B.because              C.so                      D.yet

There is no doubt that he is a good professor, ________ he is doing fine.

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