THEY ARE TALKING ABOUT THE ... CIRCLES ON THE FIELDS. A. MYSTERY...

399. - 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

399. They are talking about the ... circles on the fields.

A. mystery

B. mysterious

C. mysteriously

D. mysteriousness