1．They told me my car needed a new ________ (电池).
答案：battery
2．He pushed the play ________ (按钮) again and ran the tape.
答案：button
3．I selected a ________ (文件) and pressed the Delete key.
答案：file
4．(2019·全国卷Ⅱ)If you have a membership card, I can give you a 20% d________.
答案：discount
