问题描述: they,the,tree,sing,now,under(连接现在进行时的疑问句) 1个回答 分类:综合 2014-11-01 问题解答: 我来补答 陈述句:They are singing under the tree.他们在树下唱歌.疑问句:Are they singing under the tree?他们在树下唱歌吗?我的回答你满意吗?不明白的再问哟! 展开全文阅读