A high-school pal of alleged terrorist Najibullah Zazi yesterday pleaded not guilty to charges that he attended an al Qaeda training camp and conspired to commit murder in a foreign country.

Adis Medunjanin, 25, of Flushing, Queens, was arraigned in Brooklyn federal court. Feds say the Bosnian national flew to Pakistan in August 2008 for two months of military-style training.

Another Zazi ex-classmate, Zarien Ahmedzay, 24, was charged on Friday with lying to the FBI. He and Medunjanin were arrested on Thursday after Medunjanin crashed his car on the Bronx-Whitestone Bridge while fleeing federal agents.