回複：謝謝，基於此再請教8老師一些問題

再問一下：“just change B-2 to F-1 within US” 這句話應怎麽理解。她護照上已經有F-1簽證了。還要在美國重簽一次嗎？
-That means filing I-539 to change B2 to F-1 and it is irrelevant to the F-1 visa. Talk to the school international student office and they will help her.

另外如果她re-enter US，海關能知道她在美國結婚生孩子過嗎？
-I don't know what will affect her to reenter US after she marries you. It is may be OK, but may be not.