21. She _______ for her exam last night.
a) study
b) studied
c) studying
d) studyed
Answer: b) studied
22. They _______ a lot of food for the party.
a) cooked
b) cooking
c) cook
d) coked
Answer: a) cooked
23. This book is _______ than the one I read last week.
a) interesting
b) interest
c) interested
d) interests
Answer: a) interesting
24. The dog is _______ in the park.
a) play
b) played
c) playing
d) plays
Answer: c) playing
25. He _______ in the lake.
a) swam
b) swimming
c) swim
d) swims
Answer: a) swam
