ExercisesContentsDownloadsUNIT 1: COMMON THINGS 常见物品Question 1 / 20请完成全部题目,最后查看答案与解析VOCABULARY · A1 Exercise 1 · Exercise 1Complete the exercise.A _____ is a bag that you carry on your back.AcarBbackpackCshoesDcomputerETVFmobile phoneGumbrellaHbookIhouseJwallet保存并进入下一题 →