( ) My mother works _____ a bank . A. in B. on C. at
Don’t forget the day ______you were received into the Youth League.
All the apples _____ fell down were eaten by the pigs.
The red rose is the only one _____I real like.
The teacher told me that the students I wanted to see were seen___ football on the playground just now.
Is the river_____ through that town very large?