I'm sorry _____ your watch is lost(填连词)答案是but,这里怎么翻译呢?或者说,这个词怎么用呢

I'm sorry that I forgot _____(send) your letter. I’m sorry I _____ your book; I only did it _____,I didn’t mean _____ trouble i'm sorry for your I'm sorry with your sorry,I haven;t finished your book _____ ,but I;m going to.Ayet B already I'm sorry I'm late.(改为同义句）I'm sorry _____ _____ _______. I’m sorry for your tenderness I'm sorry for your tenderness -- oh,sorry,I'm late.I couldn't remember where your house _____ (be) --That's all right.Come on I’m sorry I _____ your book; I only did it _____,I didn’t mean _____ trouble.A.hide; for fun; I’m sorry I _____ your book; I only did it _____,I didn’t mean _____ trouble.A.hide; for fun; to causeB.hid; in fun; to causeC.hide; in fun; causing 1.----Sorry,I’m late.----It _____ _____ (没关系) I'm sorry _____ that your mother is ill in bed A hearing B for C to hear D hearI'm sorry _____ that your mother is ill in bedA hearing B for C to hear D hear I’m sorry,I mistook you _______ your brother. I'm sorry I can't read your text. i;m sorry i broke your glass 该怎么样应答 I'm so sorry.I'don't have _____ _____ _____ today .What about tomorrow. I'm sorry _____(cause) you so much trouble. I'm sorry i am going to _____ to get to your house.为什么选带be的啊A.be a little late B.a little late