Mark the letter A, B, C,or D on your answer sheet to indicate the correct answer to each of the following questions. Trả lời câu hỏi dưới đây:When you buy something, ______ you don’t throw away your receipt.
Câu hỏi
Nhận biết
Mark the letter A, B, C,or D on your answer sheet to indicate the correct answer to each of the following questions.
Trả lời câu hỏi dưới đây:
When you buy something, ______ you don’t throw away your receipt.