Mr. Johnson ______ his boss ______ his careless mistake.
| A．apologized; about | B．apologized to; about |
| C．apologized to; for | D．apologized; for |
If a person has not had enough sleep, his actions will ___him ____ during the day.
| A．give; in | B．give; away | C．give; out | D．give; up |
___ to advertisements constantly can help to change people's opinions over time.
| A．Exposed | B．Being exposed | C．Exposing | D．To be exposed |
Nelson Mandela’s death may, in the short term, unite South Africa in ways _______have never been seen before.
| A．by which | B．that | C．in which | D．who |
TV series Where Are We Going, Dad have made an _______ on kids since it was broadcast on Hunan TV.
| A．explanation | B．investigation | C．operation | D．impression |
________ warm at night, I would fill the woodstove, then set my alarm clock for midnight so I could refill it.
| A．Staying | B．Stayed | C．To stay | D．Stay |