选择:Some people think it impossible to control the population growth .
问题描述：
选择:Some people think it impossible to control the population growth .
Some people think it impossible to control the population growth .ButI don't quite agree with them.
We should make people know that it is foolish _____ them to bring too many children into the world.
为什么一定要用of
答
It is /was +adj.of sb to do sth 是不定试做主语的常用句型.这时句中的形容词主要是表示人的品质的如foolish,nice ,kind 等.如果形容词是其他的,如necessary,important 等,则用for.