Social attention should be paid ______ our earth from ______. [ ]

15. we decided to spend the night at the foot of the mountain.

There, a big memorial has been build _____ him, who devoted himself to the poor

Have you heard of Kunming terrorist attack—Yes, it happened ________ March 1st, 2014.

I know that smoking is a bad habit, but I can’t ______ myself of the feeling that I need to smoke.