When he knocked at the door, my mother was busy ____ supper.
| A．preparing for | B．in preparing |
| C．to prepare for | D．to prepare |
Compared with the other candidates, he ______ the judgment and political perspective for the post of chairman and may fail in the election.
| A．limits | B．lacks | C．needs | D．demands |
Whenever something goes wrong, everyone blames it ___ me.
| A．for | B．of | C．with | D．on |
He was appointed as _____ president of the university yesterday. Wearing a jacket and _____ tie today, he is giving a speech on the platform.
| A．the:/ | B．a; a | C．/;/ | D．the; a |
Come and see me whenever ．
| A．it is convenient for you | B．you will be convenient |
| C．you are convenient | D．it will be convenient for you |
Lucy is a very optimistic girl．she is faced with a difficulty, she always sees the bright side．
| A．Now that | B．Every time | C．As soon as | D．On condition that |