HE / DO / HOMEWORK / BEFORE / GO / CINEMAA. HE DO HIS HOMEWORK BEF...

21. He / do / homework / before / go / cinema

A. He do his homework before he go to the cinema.

B. He has done his homework before he went to the cinema.

C. He had done his homework before he was going to the cinema.

D. He had done his homework before he went to the cinema. Duyệt của TTCM