Experts said it was       that Malaysia Airlines Flight 370(马航370) had changed course and turned back toward Kuala Lumpur(吉隆坡). 

In the old days, his father was not able to earn enough money to ______ his family. 

I ___________ my father to give up smoking, but he didn’t listen to me.

(2014·昆明质检)The five rings on the Olympic flag________the union of the five continents and the meeting of athletes from all over the world.

I hate people who __________ the end of a film that you haven’t seen before.