______ HAVE YOU KNOWN YOUR BEST FRIEND, NAM

5. - DE THI HOC KY 2 MON TIENG ANH LOP 9 TRUONG THCS CHAU DUC BA RIA VUNG TAU NAM HOC 2016 2017 CO DAP AN
Tiếng Anh DE THI HOC KY 2 MON TIENG ANH LOP 9 TRUONG THCS CHAU DUC BA RIA VUNG TAU NAM HOC 2016 2017 CO DAP AN
5. ______ have you known your best friend, Nam? – I’ve known him for two years.A. When B. What year C. How long D. How