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.
Last month, we spent at least two weeks ____________ our monthly report.
A. to write
B. wrote
C. written
D. writing
Last month, we spent at least two weeks ____________ our monthly report.
A. to write
B. wrote
C. written
D. writing
Spend time on sth / doing sth: dành thời gian làm việc gì
Đáp án D.