I ………… TO LEARN ENGLISH FOR YEARS, BUT I ……… YET A. TRIED B....

6. - BAI TAP CAC THI TIENG ANH 60 DAP AN
BAI TAP CAC THI TIENG ANH 60 DAP AN

6. I ………… to learn English for years, but I ……… yet

a. tried       b. have tried/haven’t succeeded

c. have tried/ don’t succeed      d. try/ haven’t succeeded