Can you help me with my lessons?
问题描述:
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,
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.