I noticed that my grandmother was very upset when I told her about the accident,so I wished I 　　 it to her.

A.did not mention　　　　　　　　B.have not mentioned

C.do not mention　　　　　　　　D.had not mentioned

I noticed that my grandmother was very upset when I told her about the accident,so I wished I　　it to her.

1. A.
   did not mention
2. B.
   have not mentioned
3. C.
   do not mention
4. D.
   had not mentioned