I’ve worked with child before, so I know what ________ in my new job.

I am ______ to be a computer programmer in the future.

It was not until the supreme lending crisis (次贷危机)had caused great damage to the American financial system ______ Americans realized the severity (严重性) of the situation. [ ]

They are going to _________ for the school basketball team.

UNICEF_______ clean water and food _______poor children in many countries.