Without facts , a person can’t form a correct opinion , for he needs to have actual knowledge          his thinking .
#71682
A
which to be based on
B
on which to base
C
which to be based
D
which to base
推荐题目
I wonder how many years ago ___________.
#69164
A
did your father retire
B
has your father retired
C
your father retired
D
your father has retired