I have kept touch with sb.keep touch with本意即为和某人保持联系,保持这个词就带有持续性的意思.用现在完成时表达后是表示已经联系过现在没用联系?还是表示过去已经联系过,现在还保持着联系呢?

i have no idea _they have kept in touch with each other by writing letter.a what b how long c why The old man have ------ his relatives since he left the hometown.A kept up with B kept touch C kept in contact with D kept on with i have kept you completely off the 可以说I haven't kept in touch with sb for a long time I have kept the book （for a week）.提问()() have () kept the book? kept in touch with等于什么 I have kept touch with sb.keep touch with本意即为和某人保持联系,保持这个词就带有持续性的意思.用现在完成时表达后是表示已经联系过现在没用联系?还是表示过去已经联系过,现在还保持着联系呢? I am sorry ____you waiting.to keepkeepingto have kept I _______ this book for two week.I have to return it now.A.kept B.have kept when I was at school,I ( )a diary every dayA.write B keep C.kept D.have kept you ----me waiting for two hours.i ----for you since five.a,kept ...waitedb,have kept...waitedc,kept...have waitedd,have kept...have waited怎么选,为什么,这句子怎么翻译啊 一、判断下列句子是否含有现在完成时1 I have answered the question.( )2 The police knew the truth.( )3 Computer has helped human beings a lot.( )4 The little boys have drunk 200 ml of milk.( )5 We kept in touch with each other by email I have no idea ____they have kept in touch with each other by writing letter.A what B how long C why D when答案选B选C 可以吗 翻译成：我不知道为什么她们一直通过写信彼此联系.谢谢，我想知道 C选项不选的原因 I am sorry to ( ) you waiting so longA.kept B.be keeping C.have keep D.to be kept 我要求教2道英语选择题.1.We ____wite each other ever since we met three years ago.A got in touch with B have stayed in touch with C have got in touch with D kept in touch with 2.Are you still here you were here half an hour ago who _____for --These books ____ in the library for along time .--I think they are too old to be read .A.have kept B.had kept C.have been kept D.were kept顺便也告诉我第一句话是什么时态啊 I _____this book for two weeks.I have to return it now.A.borrowedB.have borrowedC.keptD.have kept I___this book for two weeks,I have to return it now.A.borrowed B.have borrowed C.kept D have kept