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Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
You can cause a forest fire if you make a campfire and then leave it___________.
A. attended
B. attending
C. unattended
D. unattending
You can cause a forest fire if you make a campfire and then leave it___________.
A. attended
B. attending
C. unattended
D. unattending
Unattended (adj): không chú ý; phù hợp nghĩa của câu
Đáp án C.