He swam across the river last year.为什么用across

He swam across the river last year.为什么用across I swam across是什么意思 介词和副词的区别在下面的几个句子中的across哪个是介词,哪个是副词?He suddenly saw Mary across the room.a bridge across the river.We swam across the river.We can't swim across.He couldn't get the idea across to the class.请 We swam across the river这里ACROSS充当的是介词? The dog swam ___ the river.A.cross B.on C.through D.across you can see the river across which the boy swam把这句话分析一下 the man swam (across/through) the changjiang river last year括号里应该选哪个 Did you swim across the river Have you swam across the river?这两句话有什么区别 jumped,the,into,lake,he,and,the,to,swam,kite Litter Ben swam across the river_______(成功）为什么是successfully? The swimmers all swam across Changjiang River （）.（success）动词填空! .Another two pupils _________(success) swam across the Qiongzhou Channel on June 2.2005 英语一般疑问句：He swam in the river yesterday. reaching the end of the swimming pool ,back___A swam he B he swam C the boy swam D did the boy swam答案是B的原因以及其他选择错误的原因 Erna Hart _______ a good swimmer; she swam across the English Channel when she was only fourteen ye he learned forward across the bar翻译? 英语连词成句.急 jumped,the ,into,lake,he,and,the,to,swam,kite 连词成句 jumped,the lake,he,the duck,swam,to ,and ,into )