______ rockets had been used sporadically for several hundred years, they remained a relat

【C10】______A．had votedB．had been votingC．have votedD．were voting

He gradually ______ that her parents had been right and his decision had to be modified.A．

__________ 查看材料A.isB.wasC.has beenD.had been

The ranch owners appropriate the lands that had originally been ______ for the Indians use

The project _____ by the end of 1998.A.had been completedB.had completedC.has been co

Had the weather been good the children ________