本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 j4 W. f0 I# Z; A/ b+ h# y: [: I) k5 P& D0 s
Last night, I took part in a party.9 f' f( X3 u- ^. w
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.