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

I think you should go back to your          plan, which is much more practical than the present one. 

    -- I have warned him of the danger but he insisted on going there alone. -- What a _______ boy!

It is known that ________ medical examination helps people to find out health problems as early as possible.

 She looks very _____ but I can’t remember her name.