16/ Books won't disappear.
17/ Will there be a black president of the USA?
18/ Scientists will find a cure for AIDS.
19/ Most people in the world won't speak English.
20/ Will there be enough fresh water?
21/ Domestic robots will do the housework.
22/ Will the police track everybody?
23/ There will be a colony on the Moon.
24/ We won't meet aliens from another planet.
25/ Smart clothes will become popular.