Look,they are _______ (sing and dance).适当的词语,快
问题描述：
Look,they are _______ (sing and dance).适当的词语,快
答
Look, they are SINGING AND DANCING.
因为有了be动词，所以应该填写的是现在进行时态。
所以要把sing和dance变为singing and dancing[去e加Ing]
有问题继续问哈，能够帮到楼主很开心
望楼主采纳～
答
singing and dancing
唱歌跳舞
答
singing and dancing