not until then had i heard _______of what happened A.anything B.something

问题描述:

not until then had i heard _______of what happened A.anything B.something

答案是A
如果把你的句子变成非倒装句就更容易理解了:
I hadn't heard anything of what happened until then.
所以是
1 not -- - - anything
2 not- - - - until - - - -