Carl, why not go andhelp your sister water the flowers there? —Why__________? I’m busy myself. Jack is lying on the grass doing nothing.

your mother free at the weekend—No. She has much work to do.

Would you mind opening the window ? —_______.

What do you think of his talk on the InformationTechnology—Oh, very good. It’s worth ______.

Jack ______the bus as soon as it stopped, then to his joy he met his best friend at the station.