Without facts, a person can not form a correct opinion, for he needs to have actual knowledge ______his thinking .
A.on which to be based | B.on which to base |
C.which to be based | D.which to base |
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Without facts, a person can not form a correct opinion, for he needs to have actual knowledge ______his thinking .
A.on which to be based | B.on which to base |
C.which to be based | D.which to base |