What is he going to_____ when he ____up?—He’s going to be a doctor.

What do you usually do _____ your computer? —I usually chat _____ QQ friends online. [ ]

Please post this letter in the post office nearby, and __________, I will get two tickets in the train station.

Whose pen is this?— Oh, it’s_____. I was looking for it everywhere.

The World Bank has warned that rising food prices are pushing ________ people below poverty line (贫困线).