. After he graduated from college, he _______ his father’s business.
| A．took over | B．took up | C．took in | D．took on |
The reason _____ they held a party was _____ it was Sue’s birthday.
| A．why; because | B．why; that |
| C．that; that | D．that; because |
--Why do you look pale today?
--I was very ________my mother’s illness. I stayed awake last night.
| A．concerned about | B．concerned with |
| C．concerned in | D．concerned to |
I _____ in the street when someone _____ me.
| A．walk; called | B．walking; calling |
| C．was walking; called | D．walked; called |
On AIDS Day, the minister of Health Department demanded that the problems ______ paid special attention to.
| A．referred to being | B．referred to be |
| C．refer to being | D．refer to be |
The shop has been standing so ______ that a thief finds nothing to steal.
| A．quietly | B．lonely | C．empty | D．Open |