Here are the correct answers for each of the blanks:

29. Constance might go to the library, **B. But** she might stay home.

30. Sue jogs every day, **A. So** she wants to stay in shape.

31. His shoes are worn, **B. Yet** he has no socks.

32. Guy is a contractor, **A. So** he knows the construction business.

33. Bill went to work, **B. But** he didn't punch in.

34. My brother is in the play, **B. So** I want to attend the first performance.

35. Annette couldn't go, **B. Yet** she was tired.

36. Your niece and I went out to lunch, **A. And** we both ordered fish.