Could you (mówić wolniej) (a)   , please? I can't understand you.

Our profesor is (taką inteligentną) (a)   person.

Before he (pomalował swój pokój) (a)   , he had removed all the furniture.

This is the computer (któego używam) (a)   every day.

(Zamierzam) (a)   do the ironing in the afternoon.

They have (mieszkają tu od) (a)   1998.

(Biuro naszego dyrektora) (a)   is quite spacious.

Listen! (Ktoś puka) (a)   at the door!

He (nudzi się) (a)   during his English lessons.

This pencil is yours, but that (jest mój) (a)  

I've probably got flu so tomorrow I (idę do) (a)   the doctor.

Good morning, Tom is speaking. (Czy mogę rozmawiać) (a)   to Mary?

They have come (żeby dać nam) (a)   a present.