"It's sure to do"的“to do”在句子中做什么成份

It's sure to do的“to do”在句子中做什么成份 be sure to do的主语是人还是it? 英语语法问题 be sure to do用法you are almost sure to get it这个be sure to do 中的 to do 是不定式短语作 sure的宾语吗?难道to do 是不定式短语作 sure的状语 英语翻译Do it now!If you’ve got a job to do,Do it now!If you’s one you wish were throughDo it now!If you’re sure the job’s your own,Do not hem and haw and groanDo it now!It doesn’t pay to shirk.Do it now!If you want to fill a placeAnd b Why Thanks.为什么It's very cold,isn't it?的答案是It sure is.而不是It is sure. I'm sure to do it myself Heavy schoolbags are causing back problems.It sure is.But we can't decide what to do/how to do it答案是what to do,但是第二个为什么不对,希望给出具体清楚的解释, -Sorry,Miss Li,I'm late -____you won't do that ne-Sorry,Miss Li,I'm late-____you won't do that next time.A.Make sure B.It's sure C.You're sure D.Be sure of答案和选的理由 What do you think of your new book Harry?oh,it's great .I wanted it to be published but I wasn't sure whether it ___successful.A has been B was C is D would be -----:Be sure to eat breakfast every day.It is good for your stomach.-----:Sure,______A.I do B.I won't C.I will D.I don't 69.– Are you sure you have to?It’s been very late.　　-- I don’t know ______ I can do it if not now.　　A.whereB.whyC.whenD.how 67.——Are you sure you have to?It's been very late.——I don't know __c___ I can do it if not now分析 it's time to do的近义词 it's +形容词+to do的用法 make sure,be sure of ,be sure to do,for sure的区别 are you sure you have to?it is been very late..——Are you sure you have to?It's been very late.——I don't know ___ I can do it if not now 选项：where,why,when,how Would you tell me _____this mobile phone?sure,it's very easyA.what to do B.what to do with C.how to use D.what to use -Are you sure you have to?It's been very late.-I don't know ____ I can do it if not now.A.whereB.whyC.whenD.how-Hello,Jack!Haven't seen you for a long time!-John!____A.How old are you?B.How do you do?C.How's that?D.How time flies!Can