本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 5 F% r$ Q( \% c3 e % I# M/ l& _1 _0 ~; K& h# m1 eLast night, I took part in a party.3 N) [+ L X/ ^
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.