A:i doubt if he will keep his promise,这句话的语法对吗?意思是不是：我怀疑他是否会遵守他的诺言?还是说应该应该这样说B：i doubt whether he will keep his promise or not?请详细说明其中的知识点,两句话的

I have no doubt _____ he will turn up on time.A.whetherB.thatK.if D.what I don't doubt ______ he will pass the tomorrow’s exam.A.that B.whether C.if D.which I had no doubt that he was my long-lost brother. I doubt if the trouth will come out 这两句中的从句 A:i doubt if he will keep his promise,这句话的语法对吗?意思是不是：我怀疑他是否会遵守他的诺言?还是说应该应该这样说B：i doubt whether he will keep his promise or not?请详细说明其中的知识点,两句话的 I have no doubt ___ he will overcome all his difficulties.a.whichb.whatc.thatd.if请问选哪个?选和不选的原因?顺便把句子翻译成中文. 宾语从句改错急求1.He asked Li Ming where he had come for3.It looks that he were a millionaire 4.I wonder that you will visit America or not next week 5.It depends on if you will support me 6.Do you doubt whether he will pass the test 7.Could i _____ whether he will make good progress before long.A doubted B have no doubt C don't doubt D have a doubt 请问前面选择不可选择的原因是什么? i do not doubt（）he will come 添whether 还是if我觉得都可以亚,但答案是that,奇怪亚 I doubt_______ he will win tomorrow.I never doubt ___it will tomorrow —The meeting has begun and ____ he will come.—Of course,he is sure to come.He'll speak at the meeting.(D)A．I believe B．I hope C．I think D．I doubt if do you doubt that he will win 为什么用that为什么不用 if 或whether 求英语翻译:He appears to be your friend but I doubt if he is 求教:He appears to be your friend but I doubt if he is啥意思内 He appears to be your friend but I doubt if he is啥意思呢 I don’t doubt my friend, John will come to China soon. A. that B. whether C. if D. when是不是选A呢? I doubt _A____ Shenghua Football Team will gain the third prize.A.that B./ C.whether D.what选A是对的吗?我觉得该选C啊,doubt 在肯定句中不是接 whether 或 if Some people think the stock market will crash,but ___.A.I wonder if it happens B.I doubt if it will happenC.I am afraid it wouldn't happen D.I doubt if it does happen这道题我选的是C,可是答案选的是B,请问为什么C不对? I'll be very glad_____ to the lecture this afternoon.A.if he will comeB.if he comesC.if he should comeD.if he had come