Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given. Câu hỏi I had to lose some weight. I went on a strict diet. A. I had to lose some weight after I went on a strict diet. B. I went on a strict diet in order to lose some weight. C. I had to lose some weight before I went on a strict diet. D. I had to lose some weight even when I went on a strict diet.