A. A B. AN C. THE D. Ø A. A B. AN C. THE D. Ø

50. - BAI TAP TRAC NGHIEM TIENG ANH LOP 12 UNIT 5 HIGHER EDUCATION SO 3 CO DAP AN
BAI TAP TRAC NGHIEM TIENG ANH LOP 12 UNIT 5 HIGHER EDUCATION SO 3 CO DAP AN

50. a. a

b. an

c. the

d. Ø