一个简单的判断题1.i know it impossible to finish so much homework in

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一个简单的判断题
1.i know it impossible to finish so much
homework in a day.
2.i know it's impossible to finish so much
homework in a day.
3.i don't think it's possible to master a
foreign language without much memory work.
请判断以上句子的正误,并说明原因.
1是对的，3不对,可是为什么impossible前面用的是it,而没有加上is呢?impossible不是个形容词么?

1、3 对的,
第1句中it 作形式宾语,to finish so much
homework in a day是真正的宾语.
这种结构很多如I find it, I notice it ,等等,
那第2句就不正确了.
第3句是否定转移,

一个简单的判断题1.i know it impossible to finish so much homework in 1.It's impossible to finish so much work in an hour.(同义句转换） We have so much homework,it is impossible to hand it/them in think 引导的 I think it's impossible for him to finish it in te 1.I found it was impossible to finish the work in two hours He found_____ impossible to finish so much work in an hour we all found ____ impossible to finish so much work in a few 句子改错英语it is impossible for him to do so many homework in two 帮忙看下两句英语句子I think it impossible for me to finish it in 2 hou The homework is so much that I can’t finish doing it w______ Do you find that possible to finish so much homework in such 有关语法的一道选择题I think ___impossible to finish so much work in su