Students often use their calculators to solve difficult questions,______? A. don't we B. do they C. don't they D. do weĐoạn văn34/90Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following Questions. Students often use their calculators to solve difficult questions,______?don't wedo theydon't they do weGiải thíchChọn C