My sister studied hard at school when she was young, which contributes ________ her success in her career.

I prefer _______ at home ________ the match.

—What about the package of food? —You’d better ________ it at the service counter before entering the bookstore.

This soldier __ jump into the water and saved the boy.

A terrible earthquake ______ in Lushan County, Sichuan Province,______ about 200 people.