MARK THE LETTER A, B, C OR D ON YOUR ANSWER SHEET TO INDICATE THE CORRECT ANSWER TO THE FOLLOWING QUESTION

Câu 14: Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question. We haven’t met each other ___________. A. since we left lower secondary school B. nine months ago C. in 2018 D. until we moved to this city in 2018