I'VE NEVER MET YOUR SON, ...

39. - 3500 CAU TRAC NGHIEM ON TAP AV THCS
3500 CAU TRAC NGHIEM ON TAP AV THCS

39. I've never met your son, ...?

a. how old is he

b. what age has he

c. what old is he

d. how age is he

 a