It’s known to all that life’s ____ is full of hardships.
Not until he left his home ________ to know how important the family was for him.
—It's nice.Never before ________ such a special drink!—I'm glad you like it.
For a moment nothing happened.Then ________ all shouting together.
Only after Mary read her composition the second time ________ the spelling mistake.(2012·天津)
Never before ________ seen anybody who can play tennis as well as Robert.(2012·江西)