1. Marconi invented radio about a hundred years ago. Radio ............................................................................................................................. 2. It's a pity my father can't speak English. My father wishes ................................................................................................................ 3. "Do these clothes belong to you?" said Liz to me. Liz asked ............................................................................................................................ 4. Did you usually wear jeans when you were young? Did you use ............................................................................................................................ 5. We have never been to Viet's native village before. This is the first ............................................................................................................................ 6. If someone doesn't put the coal in, the fire will go out. Unless ............................................................................................................................