They______toGuangzhou______thetrainwhich______at8:00inthemorning.A.willgooffThey______toGuangzhou______thetrainwhich______at8:00inthemorning.A.willgooff…by…willleaveB.aregoingtogooff…by…isgoingtole

　　They______toGuangzhou______thetrainwhich______at8:00inthemorning.A.willgooff

　　They______toGuangzhou______thetrainwhich______at8:00inthemorning.

　　A.willgooff…by…willleave

　　B.aregoingtogooff…by…isgoingtoleave

　　C.aregoingoff…on…leaves

　　D.aregoingoff…in…willleave

　　此题选C请问最后一空为何不用willleave,

　　我个人认为火车将在早上八点离开