seat的用法The performance was put on in the open air,with audience __ on benches,chairs or boxes.A.having seated B.seating C.seated D.being seated

解释一下seat的用法.谢谢 seat做动词的用法 sit和seat的用法和区别 sit seat 两者用法的区别? seat做动词时的用法 be seated 与seat的用法 seat的用法,还有be seated是什么意思 Swing him off the seat 怎么翻译,顺便求swing 的常用用法 seat.seat sbsb be seatedseat oneself他们的意思和用法（用法要加例子） sit seat 用法 关系? sit 和 seat 的区别.unfold 的用法,意思 非谓语动词 Seat;dress ;lose的用法 能告诉我dress 和 seat 的用法么?如题! seat 的过去分词和完成时及用法 Seat的用法I saw him seated at the back of the classroom.I saw him seating himself at the back of the classroom.两句都对 under the seat 的中文意思是什么 关于SEAT的用法有一道题目:Do you know the boy ______at the back of classroom?A.Seating B.seated为什么要选A呢?SEAT是及物动词,为什么后面要加AT? sit、seat、sitting、seating的用法问题___in the chair,Mary was lost in thought.A.Seated B.Seating C.Having seated D.Being seated.怎么分析?