I think it hdrd to learn English.哪个是主语?hard

I think it hdrd to learn English.哪个是主语?hard Our holidayis from- -to- -.l think it I think it important to study hard和l think it is important to study hard哪个句子是对的?为什么? I think it important to study hard和l think it is important to study hard哪个句子是对的?为什么? I think it scorn to your tear. It's to bad.I think ,意思? 寻求初2英语短文解释In ten years,I think l’ll live in Shanghai,because l went to Shaihai last year and fell in love with it.I think it’s really a beautiful city.As a reporter,I think l will meet lost of interesting people.I think l’ll l l think it's interesting to write computer p____ I would like__maths,I think it's diffcult to learn I think it's good for me还是I think it's good to me 为什么? Sorry,I have no time____ A.to think it about B.to think it over think it hard to do 和 i think it's hard to do 有什么区别 I think it ___Tom belong to还是belongs to it hard to think i am sorry to heard them l think i lose my hearart to you i think it necessary to do it.这个句子能不能写成i think to do it necessary.有语法错误吗. You say you like me, but i don't think, may i take my heart to you, but you have done it, can not l什么意思,快 think 引导的 I think it's impossible for him to finish it in ten minutes,-------- ---------?