Where is Mary? I’d like to have a talk with her. –She _______________the library. You can find her there.
people come to visit the Great Wall every year.
When were you born? – I was born in 1989, _______ year of _______ Snake.
It wasn’t until he came back _____ he knew the police were looking for him.
Children under sixteen are not permitted to participate in such kind of activities _____ bad for their mental development.