Write the correct forms of the words in brackets. 21. Hoa is __________ because she has an exam tomorrow. (WORRY) 22. I go for a walk every day. I feel __________. (RELAX) 23. My students often do their __________ in the evening. (WORK) 24. My sister always __________ her friends when I’m studying. It’s noisy. (TELEPHONE) 25. The death of the farmer’s pony makes him very __________. (HAPPY)