关于think is,英语语法例句：I think it is hard to say.这是什么结构?为什么两个动词可以连用?

关于think is,英语语法例句：I think it is hard to say.这是什么结构?为什么两个动词可以连用? I think this is all my fault 英语语法 高中英语语法问题（急需）I think it is no use doing. I think it no use doing.哪句对?这种叫做什么?求详解 I think is show 英语语法,hardly did i think it impossible这句话为什么有did还用think而不用thought,还有it后面为什么不用is,谢谢 i think science is i 中学英语学习中的一个小小语法点,不大懂,例句：I think it essential to reserve air tickets这一类句子中都用 it 作形式宾语请问：为什么这个例句不能改为“I think it is essential ... 感觉读来也挺顺啊. 求苏教版高中英语语法+例句 仿照例句,改写句子（英语语法----被动语态）例句：They didn't give me the money-----i wasn't given the money1 .i think they should have offered Tom the jobi think Tom_________?2.Has anybody shown you what to do?Have you__________? 什么场合下,“I is...”符合英语语法? I think this is the most (i_)以i开头的关于朋友的快 仿照例句写句子：I think the dog is a good pet for an old man because it is easy to take care of. I think that televiosion is to blame for the increase in violent crime.请问is to是什么用法呢?有相关的例句最好了~ I think my answer is This is what I think. I think she is there. I think peter is 英语翻译 I it think is right