I only knew this when he had told me about it. Not until __________.
A.he had told me about it did I know this
B.did I know this he had told me about it
C.he had told me about , I knew this
D.I knew this when he told me about
A.he had told me about it did I know this
B.did I know this he had told me about it
C.he had told me about , I knew this
D.I knew this when he told me about
Loga
Hóa Học lớp 12
