1.That's the factory___ we paid a visit last night.A.where B.to which 答案是B,A为什么不可以?to which 不是可以替换成where的吗?2.Tom was much surprised to find the watch he had had____ was nowhere to be seen.A.repaired B.it repaired 答案是A,,"he had had____ "是watch定语吗?B译成“请人修”之后选它为什么不可以?3.He thought it no good ___ me know it.A. to let B.letting 答案是B 这个是固定用法吗?4.although作连词译成“虽然”可以和“yet”连用吗?这个遵循“有‘虽然’没‘但是’ ”吗?5.___ five minutes ___ before the last train left,we arrived at the station.A.There were;to go B.With;to go C.It was;left D.It had;left 答案是B,完全不明白C错在哪了?6.For some time __,they predicted,with the increased production___ possible by the assembly line,cars would become less expensive.A.coming;mad B.coming;made it C.to come;was made D.to come;made答案是D 完全不明白句子含义和语法 解释下 谢谢