Peterson used to work in a remote mountain village school, which is only _____ on foot.
—Let’s go to see the film Kung Fun Panda together. —Yes,? I can’t wait to see it.
—He failed in the exam again. —He __________his teacher’s advice.
When first to the market, these products enjoy great success.
It is uncertain ______ side effect the medicine will bring about, although about two thousand patients have taken it.
The English in the future will be quite different from the English of today. It is possible that some English words may even ________ completely.