本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 . \! ~7 J i% f9 z, X; U, ]% R! o6 X. X$ f/ n' n
Last night, I took part in a party.; P( G0 a& R* N) m# u
Last night, I was taking part in a party.
to me, all 4 are ok and acceptable. depend on where and how you are going to use them. picking one over another doesn't make the sentence any more or less sophisticated.