_puzzles me now is that we don't know _we'll major
问题描述:
_puzzles me now is that we don't know _we'll major
答
What what
前面一个,what引导的小分句做句子的主语,可以看作是主语从句,从句中缺少主语,所以只能用what来引导;
后面一个,what引导宾语从句,做know的宾语,句中缺少宾语成分,所以仍然只能用what来引导.