Tham khảo tài liệu 'english grammar tests-elementary level's archiveresponses (6)', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | English Grammar Tests-Elementary Level s archive Responses 6 IJohn Thank you so much. Sue . u No problem. u Any problem. u A problem. u Some problem I am most grateful. Sue . u You are welcoming. u You welcome. u You re welcome. u You are welcomed. Thank you very much for helping me. Sue . u You don t mention it. u No mention of it. u You mention it. u Don t mention it. That was very thoughtful of you to do that. Sue u Forgetful. u Forget it. u I ve forgotten. u Don t forget .