—The authors of computer viruses are geniuses.—I agree. If they applied their wisdom to other net technology        human beings can benefit, it would be better.
#4910
A
in which
B
through which
C
from which
D
during which
推荐题目
—I think languages subjects are more interesting than science ones. —________. I prefer science subjects. 
#4579
A
It’s up to you
B
That’s all right
C
I can’t agree more
D
I don’t think so
Only when __________________ permission _______________ allowed to enter the lab.
#4817
A
a teacher has given; are the students
B
has a teacher given; are the students.
C
has a teacher given; the students are
D
a teacher has given; the students are