I was wondering what to do and______Mr. Wang came in.
We are said to be living in ________ Information Age, ________ time of new discoveries and great changes.
As many five courses are provided, and you are free to choose ________ suits you best.
I’ve lived in New York and Chicago, but I don’t like _______ of them very much.
The parents were shocked by ________ news that their son needed _______ operation on his knee.
To her joy, Della earned first the trust of her students and then ________ of her colleagues.