Exercise 4. Circle the correct answers.

1. I think language barriers (disappear) __________________ in 30 years.

2. Some people usually (take) __________________ a long time to respond to a message.

3. Learning English can help us overcome difficulties when (live) __________________ overseas.

4. By (use) __________________ social networks, people can keep in touch with others.

5. What is people’s top concern when it (come) __________________ to messaging applications?

6. Developers of ConnectABC commit to (update) __________________ the application twice a month.

7. I can’t leave the classroom until my teacher (give) __________________ me feedback.

8. My aunt found it difficult (teach) __________________ 50 students online.

9. Emoji (become) __________________ integral to digital communication in the past few decades.

10. Robots can (listen) __________________ to people’s problems and (give) _____________ them useful advice without any complaints.