1, I'm really excited about the upcoming pottery workshop

⇒ I'm looking forward to the upcoming pottery workshop.

2, We invited a pop star to the chat show , but he didn't arrive

⇒ The pop star was invited onto the chat show, but he didn't turn up.

3, He misbehaved in the class so the teacher asked him to go out

⇒ The teacher asked him to go out because he misbehaved in the class.

4, The artisans carved figures of lions and unicorns on the top of the box

⇒ Figures of lions and unicorns were carved on the top of the box by the artisans.