Mark the letter A, B, C, or D on your answer sheet to indicate the cor

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Question 13: Where _______ since you ______ from university? 

• A. have you taught - have graduated
• B. did you teach - have graduated
• C. did you teach - graduated
• D. have you taught - graduated

Cấu trúc: HTHT + since + QKĐ

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