本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 ' J) X. s" ?0 r, Z p- `6 v: o; k" f) z1 d* d% t
Last night, I took part in a party. 0 J8 F1 V" t4 lLast 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.