She was cooking while I my homework was done was doing am doing have done

10/50

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

She was cooking while I my homework

was done

was doing

am doing

have done

Giải thích

Đáp án B

Kiến thức: Sự phối hợp về thì của động từ

Thì qúa tiếp diễn, trong câu diến tã các hành động đang xáy ra song song tại một thời điểm trong quá khứ.

S+ was/ were+ V-ing while +S+ was/were+ V-ing

A.was done B.was doing C. am doing D. have done