My mom’s __________ determined me to go on with my study.

Antarctica holds 90% of the world’s ice, and most of its fresh water (70%) is in a frozen          .

 The ___of North Korea and South Korea is getting worse and worse these days.

The medicine bought at a high price turned out to have no _____. 

 There existed an obvious________ between the accounts of the witnesses, so a judgment was not announced in court.