--- Lily, whose backpack is this?
--- I think it _____ be Peter’s. Look! His name is on it.
A. can B. should C. must D. Could
The group of people _____ the hotel after walking for 6 hours. They needed to have a rest.
A. arrived at B. arrived in C. got D. Reach
The little boy could _____ speak when he was 2 years old, but now he can sing wonderfully.
A. hard B. hardly C. never D. Ever
You will fail the exam _____ you study harder than before.
A. if B. and C. or D. unless
Peter’s teacher was very happy because he made the _____ mistakes in this exam.
A. little B. least C. few D. fewest
Our classroom is on the _____ floor. We can hear the students singing on the fourth floor.
A. fifth B. five C. three D. Twelfth
