Even given________ fuel, the current rate of increase of energy consumption cannot continue for much longer.
The headmaster could not go to the meeting; therefore, Mr. Smith _______ him.
The policemen regretted _______ as soon as possible at the alarm.
He didn’t go to detail on the subject. He spoke ________.
When I entered the classroom, I saw Mary ______ at the desk and ______ a letter.
He remained calm ________ nothing had happened,______ astonished all of us.