His parents died when he was young, so he had to .
---I'm sorry I made a mistake!--- _____. Nobody is perfect.
Word spread across the country __________ the former first lady planned to run for the next president election.
On November 11, the so-called double 11 shopping carnival, his mother spent a lot in buying clothes __________ his father bought tens of latest digital devices.
Among the forests _________ a newly built wildlife research center.
Monitor in Class 8 rushed to the classroom to ask for help only to find _________ of the classmates there.