When the audience heard the alarm, they all hurried to they thought was an emergency exit door.
The coin was almost worthless. So it was of small ________.
She had hardly got back to the kitchen ________ the doorbell rang.
They discovered the cause of the fire accidentally. They discovered it _______.
They lost their way in the mountain and _________ made matters worse was _______ it was getting dark.
He was embarrassed. He felt _____________. A. shy B. hot C shameful D. uncomfortable