—I have signed up for the Oral English Competition.—What a________idea. You even don’t know how to introduce yourself in English.

It’s really cold here. I have never experienced such terrible weather in my    life.

The officials of the National Ministry of Information Industry advise people to limit the personal information  they make      about themselves online．

John is taller than ____ in his brother Tom’s class.

John is very ____    ——if he promises to do something he’ll do it .