The government is trying to do something to _______ better understanding between the two countries.
It is often that human beings are naturally equipped to speak.
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, _____.