本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 , r! F0 Q' ~5 `7 B1 P3 o' C; s3 W( M/ c/ I
Last night, I took part in a party. ' z# }5 f' l1 bLast 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.