That will be fun中的“be”是什么意思?

That will be fun中的“be”是什么意思? that will be fun.要否答 1.be,fun,that,will That will be fun还是That would be fun That will be fun是什麽意思 that will be fun!该改问句啊,好难 翻译:that would be fun. safety can be fun是什么意思 That will be all . That will be all that will be the That will be