He feels he ________ something that wasn't important to his before.A did B has done C does D is done
问题描述:
He feels he ________ something that wasn't important to his before.
A did B has done C does D is done
答
B.通过从句的时态可判断答案在AB之间。而B强调对现在的影响。
答
答案是B
HAS DONE强调“到目前为止的结果”.