——Look at your pale face. You ______ a sleepless night. ——You bet. The work site next to the hotel was so noisy.
Is it easier to make plans _____ trips now?
The question is not easy _____.
The classroom ______ 30 feet long.
As middle school students, we _____ the police to keep order.
The teacher said he needed _____ boys besides his students _____ the classroom.