【評論主題】1. Nick: Who________ in the classroom then?  Tina: I don’t know.(A) are (B) were (C) is (D) was

【評論內容】who是單數，就跟he，she，it一樣，...

【評論主題】1. Nick: Who________ in the classroom then?  Tina: I don’t know.(A) are (B) were (C) is (D) was

【評論內容】who是單數，就跟he，she，it一樣，...