本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 % O1 l" c b6 w5 t/ }4 L# k8 L w
Last night, I took part in a party.& g( V4 D8 T/ b: V4 e5 N
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.