用所给词的适当形式填空
1. Would you tell me how your father_______ (act) when he is angry?
2. You'd better not be angry at his_______ (angry).
3. Could you tell me the facial_______ (express) of your father when he is happy?
4. I'd like_______ (ask) you a question.
5. _______ ( know) your own dog is not enough.
