Present Perfect

Heven't you done your homework ... ?

Nearly! I've ... finished Biology and Physics.

Have you studied Geometry ... ?

You have ... failed two Maths tests.

I have ... arranged to go out with my friends.

They haven't come ... .

The sun hasn't risen ... .

We have ... bought red car.

I have just received an SMS, but I haven't read it ... .

He hasn't gone to school ... .

My brother has ... written the new letter.