New technology____________to stop the students from cheating in the exam last year.A. is used B. used C. was used
_____interesting film it is!
The bridge is almost broken, so _____ is not safe to cross it.
We decided to ____ Tom to be the chief editor and vote ____ Cindy to be the secretary.
The number of the students in our school _________ about 40. A number of them __________from the city .
Nobody except Li Ping and Wang Lin_______at school this time yesterday.