本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 ! S4 m, k! [* T5 t$ d4 N+ ~, w/ S2 _0 E+ c; g
Last night, I took part in a party. 8 |9 d ^9 g4 n+ qLast 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.