_____ to sunlight for too much time will do harm to one’s skin. [ ]

Mr. Wu arrived ______Shanghai ______ the afternoon of October 10th.

early ____ nothing to do, the soldiers left thevillage the next day.

The traditional view is ________ we sleep because our brain is “programmed” to make us do so

Don’t stand __________ me. I can’t see the blackboard. — I’m sorry.