.Several years had passed ______ I finally realized the true value of friendship.
She couldn't wait ________ home after such a long and tiring journey.
You can ________ him not to smoke but you may not ________ him.
—How do you find the new book by Mary? —________. I guess she is out of her talent.
________ children whose parents had died in the earthquake ________ sent to other families.
________ by his look, he doesn't think much of our plan.