already pack suitcase my I；连成一句话

already pack suitcase my I；连成一句话 pack I have packed the camera.When_____you_____it?A.have;packed B.do;pack C.already D.yet I have_____my suitcase already.(pack)我想知道为什么答案是【packed】 pack up fanny pack pack her pack his pack my pack ice 浮冰 其中pack是什么词性 英语中pack 和pack into区别 #pragma pack(1) and #pragma pack(push, pack your shit Windows7 service pack 1 pack什么意思 pack()Java中的含义 build up pack up pack有哪些词组