Hey there!
I dont quite get it, Are we trying to find antonyms? And if so, is there an underlined word we need to focus on?
Unless, you are talking about "opposite of".
The prefix that you would find in a word to indicate "opposite of." is "Dis."
1- When was Dmitry Shparo born?
2- Where did he go on his first ski expedition?
3-What did this trip win?
4- Where did the first international ski expedition cross?
5- Where were the scientific expeditions of the projects that Dmitry Shparo run?
6- Who did he create this expeditions for?
Hope this Helps! :)