Question

英语：全部！

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Answer 1

　　性格；of；for；前面；后面；to do；clever enough to；so, that；enough time to；old enough to；young to；so, that。

 

1.  定义，不解释。

2. 由定义可知，generous是指人物的性格品质，所以用of

3. 因为dangerous针对于busy street而言，并不是人物性格，所以用for

　4.5.6.为基本常识，不解释。

　7. 聪明的是形容词，用于enough之前，后因为有动词，所以再加上不定式标志to就可以了，所以是clever enough to

　8. 上面给用法了，就不解释了

　9. 时间是名词，用于enough之后，后面因为有动词，所以再加一个to就可以了。

   10. 这个不大好解释，不够年龄=不够大，而old也可以表示为“年龄大”。其它理由同第7空

   11.12. 上面给用法了，不解释。

Answer 2

1.
it was generous of him to pay for the meal for us.
it was very dangerous for children to cross the busy street.
形容词放在enough的前面
名词放在enough 的后面
enough 后面的动词用to do

2
He is clever enough to understand what i said
he is so clever that he can understand what i said
i have enough time to prepare for the exams.

3
She is not old enough
She is too young to go to school
She is so young that she can't go to school.
有什么不明白还可以问我

Answer 3

1.性格（ 即人物本身的属性）
of
for
2 前面
后面
to do

clever enough to
so that
enough time to

old enough to (to to shool 印刷错误 应为 go to shool)
young to
so that

Answer 4

特点 of for 前面 后面 to do
clever enough to
so that
enough time to
old enough to这道题印刷错误了，最后一个空后面的to应该是go
young to
so that