Sorry, dear. It’s my to have you take tablets by .
A. mistake; error
B. fault; mistake
C. error; fault
D. fault; error
网友回答
A. mistake; error
(答案→)B. fault; mistake
C. error; fault
D. fault; error
解析：考查名词词义辨析。句意：对不起，让你服错了药是我的过错。fault，强调过错，过失，
做错了什么事，道歉是说：Sorry，It's my fault. mistake 多指小错误， I have made a mistake. 这就不能用fault，固定短语：by mistake错误地，所以B正确。