Copernicus’s theory is now the basis ______ all our ideas of the universe are built.
#77771
A
to which
B
on which
C
for which
D
by which
推荐题目
How do you guess ________?
#77434
A
did they finish the work within so short a time
B
they finished the work within so short a time
C
had they finished the work within so short a time
D
will they finish the work within so short a time