.The other day I was showing the boys the weekly chemistry experiment when, ________ I knew it, the mixture was bubbling over everywhere.
Look at the trouble I am in! If only I __________ your advice.
The doctor did a lot to __________ the patient's fear __________ he would die of cancer.
They use computers to keep the traffic _________ smoothly.
The flowers _________ my mother, but my sister thought they were for her and took them.
She had just finished her homework_________her mother asked her topractice playing the piano yester-day.