本帖最后由 hua_chris 于 2013-8-6 14:25 编辑 ' T1 L# ?& t$ {4 I( s* C. s* c + p4 N8 D# \. ^6 {* O9 @- v* dLast night, I took part in a party. # O# b3 l6 c5 ?; ALast 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.