本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 / ?# Q8 l3 X7 ?9 i# w W& z* h + L; M U) H3 k$ oLast night, I took part in a party. L* m' P$ X, s2 a1 N/ R; {
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.