With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer.
—You didn’t invite Mary to the ball? —___ her, too?
We need to get to the root of the problem______ we can solve it.
Schools should be lively places where individuals are encouraged to ______ to their greatest potential.
Hard work and lack of sleep have _____ her beauty and youth in recent years.
We shall not start the project until it __________ by the committee.