急問各位大俠 re-enter US from Canada by land

Hi,
I am a H1b holder and have to drive to Canada for a few days. A friend says that when a person re-enters US from Canada by land, generally the officer does not stamp his/her passport, is that true?

If my passport is not stamped, can I ask the officer to stamp my passport because I really need the date stamp to prove my arrival.

If the stamp is denied, is there any other document to prove my stay in Canada?

Any response are greatly appreciate!

Thank you

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