根据句意从方框中选用合适的词语,并用其适当形式填空。 knowledge; I; in the slightest; friendly; think of 1. If you were more _____ to people, you would have more friends. 2. I'd introduce _____ if I wanted to be friends with a girl. 3. The beautiful girl isn't polite to old people _____. 4. Whenever I see the gift, it makes me _____ my best friend. 5. She is very _____ about art.