. It’s not I won’t do it, I can’t do it.
A. what; but that
B. because; but what
C. what; but because
D. that; but that
网友回答
A. what; but that
B. because; but what
C. what; but because
(答案→)D. that; but that
解析：本题考查连词及名词性从句。句中not … but …不是……而是…….。两个that都是引导表语从句，在从句中都不作成分。句意：不是我不愿意做，而是我不能做。