The professor suggests that headings are________

Lastly, here we are in the living area, which, you’ll be pleased to hear, is still the heart of the family home. Let’s enter the room. Now, to the left of the entrance is the main seating area with a sofa, and directly opposite the entrance is an armchair. The sofa backs onto the wall and the armchair faces to the left, across the coffee table to a blank wall. So ’where is the TV?’ I hear you ask. Well, this entire wall is the television. The whole thing is a plasmid screen designed to show your TV, surf the Internet or, when it’s not in use, it displays anything you want from family pictures to famous works of art.
On the opposite wall to the sofa is a fireplace, which still has a real fire nothing beats that now. does it? But the rug in front of the fire now also monitors the temperature, and either opens of closes the chimney, so as not to overheat the room. It still has its normal uses though, as you can see, the cat likes it very much and is curled up on it, happy as can be.
What else is on offer? Well, for entertainment the family still reads books, so there is a bookcase on the wall to the right of the entrance. But what about the computer? Well, it’s inside your head and powered by those intelligent clothes you’re wearing. Imagine this: as you’re sitting relaxing on the armchair, you’ll be able to reach out and put your hot drink on the coffee table in front of the armchair. You suddenly remember that you need to send work an email. That same coffee table holding your cup is also a touch sensitive keyboard for you to type your email and then click    ’send’. All you need to do to activate it is say ’email’ and the image of a keyboard will appear.
Well, I hope you’ve enjoyed your tour around the home of the future and that you’ll come visit again soon. Bye-bye.