Interest is as      to learning as the ability to understand , even more so.

He is perfectly __________ to live in the mountains and paint pictures all day, even though he is of poor health.

（2014年北京市西城区高三5月二模试题）32. The landlady prefers to have women in the apartment rather than men. She thinks women take  ______ care of things!

To win in these areas, the firm needs a sustainable __________ advantage.

He came into the classroom_________.