John said he _________ her since they ________ school.15/20John said he _________ her since they ________ school.hasn’t met – lefthadn’t met - had lefthadn’t met -leftdidn’t meet – has leftGiải thíchĐáp án đúng: B Dịch: John nói rằng anh ấy đã không gặp cô ấy kể từ khi họ rời trường.