“when i returned home,i found the window open and a number of things_____”a to stealb stealingc stolend missed(P40)

It was still early when I returned home.为什么不是It was still early when I returned to home.returned和returned to有什么区别啊? When I returned home,i found the purse was lost When I lost my wallet,I never expected it to be returned.为什么用be returned ,为什么用被动. when i returned to my mother land ,i was nearly lost .aimost everything changed When I returned to the classroom,I found my watch（ ）.是用lost还是missing? 3.It has been years ________ I returned home.A.after B.that C.sinceD.when Imagine my pleasure when I returned home for the weekend!感叹号表示什么? return要加to么?新概念有句句子是when i returned home.我记得是returned to home这to什么时候加什么时候不加呢? When he_____there.a.returned to b.retured back c.returned when he returned中returned可以换成come back Were you worried about your daughter last night?Yes,It was___A.until she returned that I went to bed B,until she returned when I slept wellC.not until she returned that I went to bed D.not until she returned when I slept well My father had returned from his business visit to London when I came in,rather late,to supper.I 再请教一下-－when will you come to my house?---I will come here to see you when I returned from shanghai.这里用when怎么不对. I don't know when Jim__________.I'll meet him at the airport when he____.A.will return;return B returns;will return C.returned;returned D will return;returns I don't know when Jim _____.I'll meet him at the airport when he ____.A.will return；return B.returns；will return C.returned；returned D.will return；returns 说明原因喔 When he__his native country ,he found it had changed a lot.a.returned backb.returned toc.returned back tod.returned The town was still the same when I returned years later.请问这里的years later怎么理解呢? I __the book to the library.When _you_ it?第一句为什么用现在完成时,不用一般过去时?3.I_____the book to the library.When ______ you_____ it?A.have returned; did return B.have returned; have returned C.returned; did return这个为什