I thought I should ask the doctor about going on a diet. I went to the surgery30/34Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions. I thought I should ask the doctor about going on a diet. I went to the surgery.Having been on a diet, I went to the surgery.I went to the surgery, so I asked the doctor about going on a diet.I asked the doctor about going on a diet, so I went to the surgery.I went to the surgery in order to ask about going on a diet.Giải thíchĐáp án D