回复：请教各位老师同学：父母探亲延期的问题。

最近签证延期容易批准吗?申请延期被拒的可能性大不大？
-If it is your parents first time B2 extension (no any B2 extension in their previous entries), they have a good chance to get the extension approved.

如果在I-94到期前回国，然后在明年二月份签证expire 前再来美国，会不会因为在国内停留时间太短而不能再进入美国？
-No problem to enter US as long as the visa is valid.
这方面有在国内必须居住多长时间才能再次来美国的具体要求吗？
-No.