下列加点字的用法和意义，相同的一组是（ ）

_____does it cost —Five hundred and fifty yuan.

It’s easy ________ chess.

In the second type, the shark pushes you with its nose to find out if you are fit __________, and then bites you if it thinks you are.

May I have your ____ that you won’t tell anyone about this— Sure, I’ll keep the secret.