be dangerous to sb/be dangerous for sb哪个对?be dangerous to sb与be dangerous for sb哪个对?朗文中上述两个例句都有请高手指点

be dangerous to sb be dangerous to sb和be dangerous for sb有什么区别吗? be dangerous to sb/be dangerous for sb哪个对?be dangerous to sb与be dangerous for sb哪个对?朗文中上述两个例句都有请高手指点 be home to sb be surprised to sb? be happening to sb sb be prepared to be sth to sb be accountable to sb sb be honoured to It may be dangerous to drive a car ___a snowy day.A.in B.on 急 谁能用sb be free to do sth sb be busy with sth sb b谁能用sb be free to do sthsb be busy with sth sb be busy in doing sth各造2个句子, be useful to sb还是for sb? be embarrassing to sb还是for sb? be important to sb还是for sb be rude to sb还是for sb oppose sb / be opposed to sb be important to sb.与be important for sb.的区别?English is very important___us.A.for B.to