They are going boating( )the riverA.upB.underC.onD.in求原因

when are they going? How are they going there? they are going to the Where are they going tomorrow? THEY ARE GOING TO A when are they going中文 Where they are going 和 Where are they going 的区别Where they are going 是什么结构? What are they going to do? Where are they going的中文意思 They are going to drive the car. Where are they all going?什么意思? They are going -------（fish） tomorrow . 用They are going to.造句 When are they going to finish it? they are going to fish. 翻译英文 they are going （ ) ( ) a field trip tomorrow what are they going to eat? where are they going to skate?