The school rules state thatno child shall be allowed out of the school during the day,_____accompanied by an adult.[ ]
What do you think made him put into prison—_______ stealing the valuables.
Several companies are competing _____ each other for a contract(合同) [ ]
Where is Jenny I can’t see her anywhere.— She_______ Korea to see the famous actor Jung-ki Song. She will be back in five days.
The students hurried to the classroom the bell rang.