TIM WAS TIRED.HE ……….HARD ALL DAY.A-HAS BEEN STUDYING B-STUDIES C-S...

58- - BAI TAP TRAC NGHIEM VE THI TRONG TIENG ANH
BAI TAP TRAC NGHIEM VE THI TRONG TIENG ANH
58-Tim was tired.He ……….hard all day.A-has been studying B-studies C-studied D-had been studying