Write the correct form of the given words

IV/ WORD FORM:  Write the correct form of the given words.

17. Be good ___________! Don’t throw rubbish everywhere! (CAMP)

18. We went ___________ a lot when we visited Italy last summer. (SIGHTSEERS)

19. On Tet holiday, locals decorate their houses with colourful flowers and family members eat together and visit ___________. (RELATE)

20. Huế is the oldest city in Central Vietnam, near Đà Nẵng, it also has the most ___________  river in Central Vietnam - The Perfume River. (FAME)