He / spend / two hours / do / homework. A. He spent two hours to do his homework B. He spent two hours doing his homework. C. He spend two hours doing his homework D. He spent two hours do hi
Giải thích
Đáp án đúng: B
spend time doing st = dành thời gian làm gì
Dịch nghĩa: He spent two hours doing his homework. (Anh ấy dành hai giờ để làm bài tập về nhà.)