-- I had a quarrel with my friend Jim yesterday,and now I _______ it.
-- Why not go and say sorry to him at once?It's never too late to mend.
A:feel ashamed of
B:am proud of
C:am interested in
go ____ buy ____ eat ____ take ____ ride ____
某固体NaOH在空气中敞口放置了一段时间.