Person A: Thank you for taking care of my dog when I’m away. ______________. Person B: You’re welcome.Đoạn văn21/55Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Person A: Thank you for taking care of my dog when I’m away. ______________. Person B: You’re welcome. I really appreciate your helpHelp yourselfYou can’t help itYour help is always welcomeGiải thíchChọn A