5、They are the ones who are on the couch.(变为介词短语做定语)

5、They are the ones who are on the couch.(变为介词短语做定语)
5、They are the ones who are on the couch.(变为介词短语做定语)

5、They are the ones who are on the couch.(变为介词短语做定语)
They are the ones on the couch.

同意楼上的答案，肯定对的。

他们是那些在沙发上.