Tham khảo tài liệu 'basic grammar's archivetest 019', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Basic Grammar s archive Test 019 1 .John 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 .