He did poorly in his exams,________how hard he had studied for them.

问题描述:

He did poorly in his exams,________how hard he had studied for them.
A.regarding B.considering 为什么选B啊

虽然两个词都有关于和就...而论的意思,但regarding是prep.此题需填空的的地方要填连词,才能使这段话成为一个完整的句子.而considering有conj.的含义,意为考虑到.