后者對(duì).
從句中,特殊疑問(wèn)詞提前,之后是主語(yǔ)"the main idea of the material ",之后是動(dòng)詞(was)
I asked myself what the main idea of the material was,where this idea derived from and what can be utilized from that throught my reading.
補(bǔ)充:第一個(gè)what,換了其他特殊疑問(wèn)詞也是一樣,什么where who的.后面的where是一樣的,用陳述句語(yǔ)序(主語(yǔ)+動(dòng)詞+賓語(yǔ)).
而第二個(gè)what,由于這里what是做主語(yǔ),所以不用改.你可以想,除了what,就找不到其他主語(yǔ)了,所以只能是what.
另外,感覺(jué)這樣說(shuō)使用于書面語(yǔ)多點(diǎn),口語(yǔ)的話說(shuō)起來(lái)都差不多,老外都懂,就看自己對(duì)自己的要求了.