CAN YOU TELL ME THE REASONS FOR ... THE MOTHER’S DAY

492. - 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

492. Can you tell me the reasons for ... the Mother’s Day?

A. celebrate

B. celebrating

C. celebrated D. celebration