Two middle-aged passengers fell into the sea. ______, neither of them could swim.

Honestly speaking, I would agree with Shirley, though not ______.

Nelson Mandela, former president of South Africa, devoted himself        to making the black and white equal.

----- I am certain David has told you his business troubles. ----- ______, it is no secret that he owes a lot of money to the bank. 

She didn’t run off the stage. __________, she finished the performance with a smile on her face.