( )21. Their inventions are important, but I think _______ are more important.
A. we B. our C. us D. ours
( )22. They didn’t do anything except staying at the hotel ________ the third day.
A. in B. on C. at D. for
( )23. — Do you need a _________ to plant trees?
— Thanks. That would be fine.
A. band B. book C. hand D. race
( )24. — This is one of the _______ films that I have ever seen.
— I agree with you.
A. more surprising B. most surprising
C. more surprised D. most surprised
