WE'VE GIVEN UP _______ TO PERSUADE THEM.A. TRYING CHANGING B. TRYIN...

1. - BAI TAP TRAC NGHIEM TONG HOP01
BAI TAP TRAC NGHIEM TONG HOP01
1. We've given up _______ to persuade them.A. trying changing B. trying to change C. to try changing D. try to change