Stepsmust be taken ______this kind of disaster will never happen again

I find _________difficult to work with the man.

下列词语中加点的字，注音全都正确的一项是（ ）

I was wondering what to do and＿＿＿＿＿＿Mr Wang came in

TV-Turnoff Week, _______ millions of people around the world participate every year, tries toencourage people to turn on life[ ]