anyone
1.anyone作“任何人”解，不作“任何一个”解。说“任何一个”该用any one，如any one of us和any one of these。把any one用作“任何人”解也可以，但现在不很普通。
2.用了anyone，不可用one，one's等词指它，如If anyone comes, ask him to wait里的him不可改作one。
3.参见 anybody 2
4.anyone跟everyone不同，any one跟every one不同，参见any 1和anybody 5
5.不可说Anyone cannot do it，该说No one can do it。参见any 3和anybody 6
