Form N-648

Hi
Is anyone knows about N-648. My parents got their green card for 4 and half years. My mom is blind on one eye , and poor vison on another eye. My dad had stoke before, and he has bad short term memory. Do they eligible for English test wiver?
Thanks

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• 回复：Form N-648???? -863211- ♂ (209 bytes) () 08/21/2010 postreply 16:50:54

• thanks -wiwjj- ♀ (14 bytes) () 08/22/2010 postreply 18:55:17