Use reduced relative clauses in place of the relative clauses
16. Anyone who doesn’t want to take part in the meeting must inform the board.
17. The teacher who takes the responsibility for the class is Ms Lan.
18. .She’s just bought a handbag which was made of crocodile skin.
19. I met a man who had been working in this factory for a long time.
20. The story which was told by my grandma was interesting.