Can Parents第三国签证after 6 months

Please help:
Visiting parents can have the multiple entries for one year, but they can only get 6 month - stay when they enter US, does anyone know if they can go to Mexico or Canada at the end of valid six months, and re-enter with the additional 6 months?
I want my parents can stay with me as long as one year, but do not want to try extending at the end of first 6 months since it is very risky.
Is re-entering from 第三国 with the valid multiple entries possible, or better than visa extention?

Thnaks!

所有跟帖： 

• 回复：Can Parents第三国签证after 6 months -nannan- ♀ (24 bytes) () 03/30/2005 postreply 11:20:59

• They don't account this way .. -CanImm- ♂ (154 bytes) () 03/30/2005 postreply 11:28:42

• 我父母原先就这样做过，我们带他们出了一趟美国，再入境 -时候又拿到6个月- ♀ (45 bytes) () 03/30/2005 postreply 11:56:48

• 那你父母得腰会说英语啊, 否则加拿大签证官怎么面试他们 -真厉害- ♀ (0 bytes) () 03/30/2005 postreply 12:24:20

• 回复：那你父母得腰会说英语啊, 否则加拿大签证官怎么面试他们 -我寄去纽约办理的- ♀ (14 bytes) () 03/30/2005 postreply 13:53:39

• oh你是说不用去第三国签证, 还是再签证有效期内重新入境给 -了六个月啊,好办法- ♀ (0 bytes) () 03/30/2005 postreply 20:17:33