Present Perfect & Present Perfect Continuous

I'm very tired. We ..................................... too fast.

We ..................................7 kilometres in only one hour and a half.

I  ............................... for you all morning! 

You  ........................... a lot of cookies!

I .............................. here for over a month and I .......................... the manager yet.

Look, I ............................ my car. Doesn't it look new now?

Sam ............................. his car for only two years. 

I ............................ chocolate since I was a child. You might even call me a "chocoholic."

I  ......................... my keys and I ......................... to contact my dad all morning, but he isn't answering his phone.

.................................. doing your homework yet?