1.would return-> would have returned
2.pauses-> will pause
3.bỏ would have đầu tiên
4.doesn't-> didn't; is responsible-> would be responsible for
5.will continue-> had continued; should-> would have passed
7.stay-> stayed
8.wanted-> want
9.was->is
11.had objected-> would have objected; had suddenly->suddenly had
12.soon be-> be soon, bỏ will