Don’t be afraid of asking for help ______it is needed.

Not once ________ to Michael that he could one day become a top student in his class.

Lily and Kate invited me at their house tonight.

______ the election is over,” saidPowell, “the time has come for me to step down as secretary of state and returnto private life.”

Do I have to sell my old computer It almost stops working.— You ________ do so, it only needs ________. Something has gone wrong with it.