Seating herself alone there,she memorized her happy hour.为什么要用seating而不用Having seated或seated?

seating Seating herself alone there,she memorized her happy hour.为什么要用seating而不用Having seated或seated? floor seating 氮氧化铝（AlON）电子式 牛津高中英语模块一unit2 HOME ALON 的 翻译 问几道英语单选题,希望得到分析解答1.when he entered the room,he dound Mary ___at the desk,reading.A.seating .B.sat.C.seated.D.sitting herself为什么不选B,A看起来也可以吧,前面不是有when么..2.it has been announced that c herself 与by herself的区别 see sb.seating有这种用法吗 PUMP SEATING COUPLINGS 翻成汉语是什么? Seating和Seated的用法详细! She travels ______ herself. coach herself翻译? change to relax herself herself的对应词 Seating myself,I began to eat.中为什么要用seating啊说的具体写哦 She is not quite well herself today.herself作表语. SHE IS BY HERSELF的BY HERSELF是什么成分? she will finish the work [herself]为什么不是by herself