In the __________ civil war that began in 2011, Kurdish fighters received significant international support in fighting ISIS.

At Princeton University, the 2016–2017 comprehensive fee (tuition, room, board, and expenses) was nearly ______.

A. US$64,000 B. US$75,000 C. US$80,000 D. US$85,000

By preventing a state or group of states from gaining enough power to dominate a region, a(n) _____________ is achieved

Fill in the blank with correct word