I wondered ___.
A. what the matter was B. what was the matter C. the matter was what D. was the matter what
I wondered ___.
A. what the matter was B. what was the matter C. the matter was what D. was the matter what
B
wondered 后接what引导的宾语从句,所以语序用陈述句的语序,同时此处的 what作主语.