--------Have you asked somebody to repair the machine? --------Oh, sorry, I forgot it. I _________for an engineer at once.
I don’t think television will ever ______ books.
There were no tickets _________ for Friday’s performance so we went to the cinema instead.
.________ the sunlight for a long time is harmful to your skin.
______ in his book, he didn’t notice me when I entered the room.
The door is low, so ______ your head when you go in.