WHICH SONGS DO THEY OFTEN SING ... CHRISTMAS

4. - 1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN
1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN

4. Which songs do they often sing ... Christmas?

A. on

B. at

C. in

D. of