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.    

______, I will give it back to you. 

• A. A. When I finish reading the book
• B. B. When I was finishing reading the book
• C. C. When I finished reading the book
• D. D. When I had finished reading the book

vế sau chia ở tương lai đơn => vế trước chia ở hiện tại
=> A
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