a) The Internet won't affect society and commerce dramatically. I don't agree with that. I think the Internet {select: +will; won't} affect society and commerce dramatically.
b) There will be a lot more multimedia. I agree with that. I think there {select: +will; won't} be a lot more multimedia.
c) Videoconferencing will be a real alternative to air travel. I don't agree with that. I think videoconferencing {select: will; +won't} be an alternative to air travel at all.
d) Chinese will be the most popular Internet language quite soon. I don't agree with that. I think Chinese Internet language {select: +will; won't} be as popular as it is now.
e) People will get bored of the Internet. I don't agree with that. I think people {select: will; +won't} get bored of the Internet.
f) Online shopping won't replace high-street stores. I agree with that. I think online shopping {select: will; +won't} replace high-street stores.
g) Hackers and virtual pirates won't rule the Internet. I don't agree with that. I think hackers and virtual pirates {select: +will; won't} rule the Internet.
h) Internet trading technologies will intensify competition in world markets. I agree with that. I think Internet trading technologies {select: +will; won't} intensify competition in world markets.