1. B. Think of what say what, basically is not through the brain thinking;

2. AB, most dainty blood type, often hit the nail on the head, but I don't care about people won't say that;

3. O, often talking about the rise of most suddenly jumped out of a difficult obedient or embarrassing words;

4. Type A, and basically every sentence should be said, after A brain weigh tend to want to come out more than out.