It is illegal for a public official to ask people for gifts or money __________ favors to them.
| A．in preference to |
| B．in place of |
| C．in agreement with |
| D．in exchange for |
In our childhood, we were often ____ by Grandma to pay attention to our table manners.
| A．demanded | B．reminded | C．allowed | D．hoped |
After he retired from office, Rogers _____ painting for a while, but soon lost interest.
| A．took up | B．saved up | C．kept up | D．drew up |
The telephone rang at midnight, but it stopped ______ I could answer it.
| A．when | B．that | C．before | D．since |
The radiation amount of a mobile phone for two half-hour periods per day is equal to ___ to an X-ray for ten seconds.
| A．expose | B．exposing | C．exposed | D．being exposed |
If only he _____ to send that letter to my grandpa, my grandpa will come to help me. Look, I’m so helpless now.
| A．remembered | B．remembers | C．has remembered | D．had remembered |