用主语 + be(was ,were) + 其它.主语 + 动词（过去式）+ 其它 这两个结构造句 10句

一.1.She was singing.She was not singing.Was she singing? Yes, she was . 2.She was dancing.She was not dancing.Was she dancing?No, she wasn't. 3.We were dringking. We were ...