25. The train leaves at 6:00 p.m., so I have to be at the station ____ 5:40 p.m. at the least.
.It is reported that two exhibition centres, ____are being built in my city, will open next year.
How about taking _____short break? I want to make _____ call.
---Hi, Tom. Do you have any idea where Jane is? ---She _________ in the classroom. I saw her there writing her composition just now.
News came from the school office ________Li Hua had won the scholarship of Qinghua University.
Mike, together with his parents, ________ going to the countryside to see his grandparents next week.