It was not until all the milu deer ________ that we realized we should build a natural park to protect them.
By the time she reached the corner of the street, the footsteps _________.
As Polly observed the passengers on the train, she _______that she was being watched by a tall man in a dark coat.
Kathy ______ a lot of Japanese while working with some Japanese engineer.
— Tom was late for class this morning again. — You know, _____.
For most people, life in __ Britain is very different to that lived by their grandparents.