It's hard to imagine his cooking the dinner和It's hard to imagine him cooking the dinner区别imagine+sb doing sth 此结构中sb用哪种形式?可用物主代词或名词所有格,宾格可以吗?

I find it hard to imagine与It's hard to imagine区别,为什么一个没有is,一个有is. It's hard to imagine that such a millionaire wears a w____ coat. 难以想象是find it hard to imagine 还是hard to imagine? It's hard to imagine his cooking the dinner和It's hard to imagine him cooking the dinner区别imagine+sb doing sth 此结构中sb用哪种形式?可用物主代词或名词所有格,宾格可以吗? it's hard to 求英语翻译 it's hard to imagine what will happen if all people concerned don't come on time. 这句英语有错吗?It's hard to imagine how the world would be like if there no forests a bloodier crime than this it's hard to imagine 这是在书中看到的一个例句,我不明白为什么要有it?为什么不是that a bloodier crime than this is hard to imagine it's hard to tell~ “It's hard to die. It's hard to ____ that such a little chold is able to speak several languages.A.say B.realizeC.imagine D.think it is hard to imagine what life would be like without it是什么从句 without后面加什么词性的词啊?原句是：It's hard to imagine a world without print .without不是介词吗?介词后加现在分词啊... 这句话中的系动词用得对吗?For American it’ s hard to imagine living in a place where there is no cars It's hard to imagine what the world would be like if there （were ) no forests句中的no可否换成not on-his-sleeve 的中文意思是什么呀?原句是这样的：it's hard to imagine a Jack without an on-his-sleeve ego. i heard about it ______.Ti's hard to imagine such things happened just a few years ago.A.only just It's hard to comments to me.