The price of batteries has gone up. They are a lot _________ than last time.Đoạn văn7/28Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. The price of batteries has gone up. They are a lot _________ than last time.more expensiveas expensivethe most expensiveexpensiveGiải thíchA. more expensive