英语语法时态单选Peterhasjustarrived,andIdidn'tknowhe()untillastnight.A.hadcomeB.wascomingC.willcomeD.istocomeTheteacherwantstoknowwhetherwe()ourpapers.A.hadhandedinB.wouldhandinC.havehandedinD.a

Question

英语语法时态单选
Peter has just arrived,and I didn't know he (   )until last night.
A.had come B.was coming C.will come D.is to come 
The teacher wants to know whether we (     )our papers.
A.had handed in B.would hand in C.have handed in D.are handing in

Answer 1

第一题选D,Peter是在我知道之前就到达了,用过去完成时,句子意思就是：Peter 已经到了,但我也是昨晚才知道.
第二题选C,前面wants是一般现在时,所以后面也要用表示”现在“的时态来对应,而交作业与与现在的情况有所联系,因此用现在完成时,句子的意思是：老师想知道我们是否交了作业.
希望采纳哦~!^_^