______ HAVE YOU KNOWN YOUR BEST FRIEND, NAM
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
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