Can you help me with my lessons?-----I'm sorry,_____I have someth_英语解答

Can you help me with my lessons?
-----I'm sorry,_____I have something improtant to do.
A.yetB.butC.howeverD.for
答案是B,

人气：303 ℃　时间：2020-03-26 23:21:26

解答

选 B.but 但是
有轻微的转折的意思,这是常用的举行,BUT后面加原因,有点委婉.