Here are the sentences completed with the provided words:

1. Do you often send **private** messages to your friend?
2. Can learning English help you overcome the **language** barrier when living abroad?
3. Telephone helps you communicate in **real** time.
4. Do you think translators will lose their jobs when **translation machines** become popular?
5. Many people reply to **social** messages, but others take a long time to respond.
6. If you have a high-speed internet connection, making a/an **group call** is a piece of cake.