作业帮It is important _us _ study Euglish hard.A.to,to B.for,to C.at,to D.for,at但我不知道为什么.
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It is important _us _ study Euglish hard.A.to,to B.for,to C.at,to D.for,at但我不知道为什么.
It is important _us _ study Euglish hard.A.to,to B.for,to C.at,to D.for,at
但我不知道为什么.
It is important _us _ study Euglish hard.A.to,to B.for,to C.at,to D.for,at但我不知道为什么.
答案：B
解释：这里用的是固定句型：It be + 形容词 + (for sb.) + to do sth. it作形式主语,动词不定式作真正的主语.
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It is important for sb. to do sth. 对某人来说做某事很重要
记住该句型就行了
这是一个固定句型啊。。
It is adj (for sb) +to do sth
B
B
for 名词，to 动词。
It is important _us _ study Euglish hard.A.to,to B.for,to C.at,to D.for,at但我不知道为什么.
it is very important
how important it is 还是how important is it
It is a important problem
Nothing it is Nothing it is important是什么意思 Nothing it is important是什么意思 Nothing it is important是什么意思
it is important to it is important for it is important of 这三个结构都有吗 都怎么用
it is very important to people
How important it is _____ (save) water!
why is it important to speak English?
it is important 最高级形式是什么
It is important to be careful with
is it important to look good?why?
对because it is very important提问
It's happy is very important!
It is an important festival in theWest.
just like 和 It is important to
It is important that 后面怎么跟
is it important换成两个词