Here are the correct forms of the words for the sentences provided:

1. What **activities** should we do with our friends in our leisure time? (act)
2. You can write about some **differences** between city life and country life. (differ)
3. He hates **loading** rice from the truck because it’s quite laborious. (load)
4. We just can't bear our new classmate. The guy is so **unfriendly**. (friend)
5. Foreign tourists are impressed with the **hospitality** of the local people. (hospitable)