I suppose you could give a talk instead of Jack."suppose"为什么不要用过去式?

I suppose you could give a talk instead of Jack.suppose为什么不要用过去式? it's a very nice f you to say so,i suppose i (could)为什么用could suppose 表猜想当假设讲时用虚拟语气?it's a very nice f you to say so,i suppose i (could)if you need some help ,why don't you ask me?it's a very nice of you to say so,i suppose i (could)suppose表猜想当假设讲时用虚拟语气?如果 I could __________ how upset you were just from the expression in your eyes.guess assume suppose postulate I suppose you couldn’t let me borrow your car this evening,_____?A.couldn’t I B.don’t IC.could you D.will you If you would like me to provide a link to somewhere,I'd be glad to do so.I suppose you could geth you don't suppose i could talk to you into it,do you?02年8月份老托福听力里面的句子,原话：I'm going to be out of town all next week,and I’m looking for someone to feed my cat while I'm gone,you don't suppose i could talk to you into i suppose you were right 和 i suppose you are right 有什么区别 英语：I don't _____ you could come here on time.I don't _____ you could come here on time.A.suppose B.agree with C.want D.feel like 翻译I suppose you're not serious,are you I suppose that i were you.这样说对吗? i could ask you suppose ill ：i am trying to think of questions to ask you,but im not very good at it,haha!what is your favourite animal?mine is a giraffe,i wish i could have a miniature giraffe to keep as a pet,haha!oh well,i suppose ill send this too you now,i ho I suppose you are not going 的意思 i suppose you have done it 改为否定句 2020______,I suppose,and the housing problems for the low-income families could be solved.20______,I suppose,and the housing problems for the low-income families could be solved.A.If you double your efforts B.To make some more efforts C.Some more eff could be和can be,could possibly和might just1.How old do you think he is?You mean the little boy who sits in that corner?Well,I am not sure.I suppose he (could be )about five years old.请问这里的“可能”用过去时（could）,不用can be What you could ,I could either