match the sentences halves

1-d. Everyone will definitely use social media in the future.

2-c. Our parents might not ever understand Facebook.

3-f. How might the world be different in 50years' time?

4-a. I'll probably Skype you later to talk about the party.

5-b. Social networks certainly won't replace face-to-face communications.

6-e. Will you write blog posts on holiday?