19. Be ______ when you cross the road. It is dangerous.
A. care
B. caring
C. careful
D. careless
20. The story was very ______.
A. interest
B. interested
C. interesting
D. uninterested
21. It's ______ trying to change her mind. She's very determined
A. hope
B. hoping
C. hopeful
D. hopeless
22. Are you ______ about the summer holiday?
A. excite
B. exciting
C. excited
D. excitement
23. The trip was ______ because it rained all day!
A. boring
B. bored
C. bores
D. boredom