to play with fire is dangerous是不是没有这样的用法.应该是it is dangerous to play with fire.to play 是主语.with fire是介词短语做定语.to play with fire is dangerous是不是主语从句?如果是.引导词是什么.先行词呢

It is ____（safe）to play with fire. _______(play) with fire is very dangerous It is dangerous to play with fire.为什么加with为什么play basketball可以不加with tell the boy not to play with fire ,it is dangerous,为什么用not to play with It is dangerous for you to play with fire.()()()()is dangerous for you. To play with fire is dangerous .还可以写成什么形式? to play with fire is dangerous是不是没有这样的用法.应该是it is dangerous to play with fire.to play 是主语.with fire是介词短语做定语.to play with fire is dangerous是不是主语从句?如果是.引导词是什么.先行词呢 ___ with fire is dangerous.A.play B.playing C.played D.To play.请问选择那个 play fire 还是play with fire It is for children to play with fire at homeIt is ___ for children to play with fire danger 为什么dangerous不行有个词组不是 It is dangerous for sb to do sth The teacher told me not to play with fire a_____. It's ______（danger) to play with fire. It's dangerous to play with fire.It's____ dangerous to play with fire.AmostBalmostCthe mostDa most The young policeman told the boys ___Anever to play with fire B not to play with fire 为什么选A 2.It is ___ dangerous for children to play with fire.a.moreb.most选什么,怎么分析的? all of us think____ dangerous to play with fire.that/ it was/ what/ it is 选哪个 play with fire还是play with the fire It's dangerous playing with fire与It's dangerous to play with fire有什么区别