________ you do, try Your best.

[　　]

You may go to the 24-hour shop _____ you want

A．whenever            B．wherever             C．however                D．whatever

We' 11 never give up our plan          happens．

A．however                 B．whatever           C．whenever              D．wherever

He is eager to own ________ he saw.

[　　]

—I hope to make decisions by myself. 
—OK. But remember _____________ you do, you should think about the results.