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 21:  You _______ a lot since the last time I saw you.

• A. changed
• B. has changed
• C. is changing
• D. have changed

HTHT + since + QKĐ

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