C by the time 是完成时的标志,即：从句出现by the time,主句要用完成时态.此题的从句是过去时态,所以主句使用过去完成时,若从句是现在时态,则主句用现在完成时.意思是：等到救火车到达的时候,房子早已烧尽了.
By the time the fire engines arrived,the house__to the groun
4个回答
相关问题
-
by the time the freemen arrived at the building,the fire ———
-
The house that _____ by the fire belongs to
-
They had built the house by the time I arrived there last ye
-
By the time the soldiers arrived,the building ________．
-
The house was d____ by fire.
-
By the time we arrived at the railway station, the train ___
-
By the time we arrived at the station, the train has left .&
-
By the time the police arrived ,they (kidnap)the poor boy su
-
By the time our teacher arrives tomorrow, all the work _____
-
By the time I arrived at the hospital , his wound