It’s already 10 o’clock. I wonder how it ____that she was 3 hours late on such a short trip.

Nothing can give a mother more pleasure than to see her children ______ to be useful citizens of the country.

— Do you know that woman in blue? — Of course. She is kind and always ____ beautiful smiles on her face.

People _____hobbies because these activities can offer enjoyment, friendship, knowledge and relaxation.

Every minute should be made full ___ of ___ our lessons well.