—Why did you leave the water running in the sink? —My goodness! I guess I ____ to turn off the tap.
Teachers are not happy when they find in class their students sending __________ to their friends by mobile phone.
We held a football match __________ Class 1 and Class 5 last semester.
She is always ready to help people in trouble because she thinks it a _________.
She felt sorry she had disturbed the __________ calmness of a man she respected.
Jason has been preparing carefully for his English examination so that he could be sure of passing it at his first ___________.