IT WAS ONLY _____ HE TOLD ME HIS SURNAME THAT I REALIZED THAT WE H...

14. - DE VA DAP AN LUYEN THI DH
DE VA DAP AN LUYEN THI DH

14. It was only _____ he told me his surname that I realized that we had been to the same school.

A. then B. untilC. as soon as D. when