My daughter cares more for new clothes than anything else in the world, so she is very _______ about what she wears.

        to his scientific research, the professor cared little about his family.

He visited the bookstore every week. He became such a____ customer that the bookseller gave him some books as presents.

When the man came in, gun in hand, we all stood there, ________．

To keep ______, we must do more out-of-door exercises.