16. She is _______ in her English class.
a) succeed
b) success
c) successful
d) succeeding
Answer: c) successful
17. The flowers in the garden are _______.
a) beautiful
b) beautifuller
c) beautifully
d) beautifulliest
Answer: a) beautiful
18. The students _______ at the blackboard.
a) looks
b) look
c) looking
d) looked
Answer: b) look
19. He _______ the door quietly.
a) opens
b) opening
c) open
d) opened
Answer: d) opened
20. The music is _______.
a) loud
b) loudly
c) louder
d) loudest
Answer: a) loud