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.

He (not)___________in his office now.

• A. A. doesn't working
• B. B. isn't working
• C. C. is working
• D. D. doesn't work

Dấu hiệu Now => Thì hiện tại tiếp diễn.

Dịch nghĩa: Anh ấy đang làm việc ở văn phòng ngay lúc này.