V. Supply the correct word form.
26. She's always worried about the (safe)______ of her family.
27. Don't leave the light on. It wastes (electric)______.
28. Most teenagers like taking part in (communal)______ service.
29. This river is very (danger)______ for swimmers.
30. The (destroy)______ of atom bomb is very terrible.
31. Hard work always brings (succeed)______.
32. Those clothes are (suit)______ for cold weather.
33. You must put all medicines in (lock)______ cupboards.
1 safety
2 electricity
3 community
4 dangerous
5 destruction
6 success
7 suitable
8 locked