(2013·甘肃兰州、靖远名校高三模拟)Social practice is an opportunity for students to gain________better understanding of how________society operates

Is that your book —Yes, ________.

I’d like to be a professional singer, but I don’t think I’ve got ________.

The shortage of supplies is________the price.

Iraq has _____ too many wars since 1990, making his people _____ a lot. [ ]