【評論主題】20. If you want to get a _______ on your purchase, you must present a copy of the original receipt a

【評論內容】為何(B)註冊產品, 不行? 註冊也是需要保留收據!

【評論主題】144.Once they _______ their mistake, they stopped the machine and re-checked it. (A) surgery (B) sup

【評論內容】應該要小寫R