------ The authors of computer viruses are geniuses.
------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.
| A．in which | B．through which | C．on which | D．from which |
I was given three books on cooking, the first _____ I really enjoyed.
| A．of that | B．of which | C．that | D．which |
Do you still remember the chicken farm______ we visited three months ago?
| A．where | B．when | C．that | D．what |
I have many friends, ________ some are businessmen.
A of themB from whichC who ofD of whom
---Why does she always ask you for help?
---There is no one else _______, is there?
A who to turn to B she can turn to C for whom to turn D for her to turn
Last month, part of Southeast Asia was struck by floods, from _____ effects the people are still suffering.
A thatB whoseC thoseD what