six o'clock
`` How slow you are , Nell , '' she now exclaimed , impatiently ; `` and look what a crooked ` E ' you have made to the end of ` WELCOME . ' Oh , do n't be so slow , boys ! Paul and Virginia will be here before we are half ready . '' `` They ca n't come before six o'clock , '' said Helen . `` We have two hours yet left to work in . Do , dear , pretty Polly , find something else to take up your time , and let the twins and the boys help me to finish this wreath . '' `` Oh , if you do n't want me , '' said Polly , in a slightly offended voice .