Câu hỏi: 19/12/2022 1,687 By Christmas, I_________for you for 6 months. A. shall work B. Shall have been working  C. have been working  D. shall be working

<div class="question-reason"><br> <h2 class="overflow-x-el"><br> </h2><p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal;"><strong><span style="font-size: 14.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: 'Times New Roman';">Đáp án B</span></strong></p><p><span style="font-size: 14.0pt; line-height: 107%; font-family: 'Times New Roman','serif'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;">“By Christmas”: câu sử dụng thì tương lai hoàn thành tiếp diễ</span></p><br> <br> </div><br>