-What do you think of the book? -Oh, excellent. It is worth _____ second time.
It’s known that taking exercise______ your health.
He gave a ________smile.
They gave a banqnet( 宴会)_____the guests from Britain.
. I’m really tired_____Tom . He had me _____for two hours in the rain .
If you cheat in the exam, you could hardly _____it.