______ about their opinion of the effect ofmodern equipment on their performance of tasks, many young people gave apositive response.

said that the engines of Flight MH370____while flying over the Indian Ocean,with all on board killed .

When we practice_______ English, we shouldn’t end up _______in Chinese.

Why do we get up so early— If we ______ the flight we would have to stay herefor another day

He is so addicted to smoking that______ seems to be no chance of talking him into quitting.