问题
选择题
I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him.
A．hadn’t known
B．didn’t know
C．don’t know
D．haven’t known
答案
答案：B
考查时态。根据句意：否则我就不会问你关于他的那么多的信息，可知我过去不认识怀特先生，故用一般过去时，选B。