None of the underwater workers has been harmed by the great fish. ________, most fish were so friendly that they played with the instruments.

Remember to think actively as you listen in class, ____ you may fall asleep.

Frank insisted that he was not asleep______ I had great difficulty in waking him up.

         difficult it might be, I will try my best to work it out.

Sadly a woman was discovered, _______brought a serious problem to the Games.