In a sport team each player has a clear role, and there are few occasions ______ members are confused or uncertain of their roles.
My father read through my composition and _________quite a few spelling mistakes in it.
It was about 600 years ago _______the first clock with a face and an hour hand was made.
If you_______ smoke, please go outside.
Every means _________tried but without any result.
Do you wake up every morning __________ energetic and ready to start a new day?