When the children become age eighteen, they can each choose to accept citizenship. Permanent citizenship will be much easier for them. They got their citizenship test date and INS interview sooner than expected. They had a few lessons with the tutor before their citizenship test and interviews. The tutor helped them pronounce English words correctly.
Some people wait for their INS appointment much longer than others.
Chen waited almost two years. Gorge got his letter in only ten months. Once you are notified by letter, things can go very quickly.