Lucy has ________ all of the goals she set for herself in high school and is ready for new challenges at university.
Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.
It was _____ of Jack to turn off the radio when I was sleeping in the bedroom.
A student will be immediately dismissed if he/ she is found _____ in school.
I failed again in the exam and only then _____ how much time I had wasted.
—Mom. May I play computer games just for a while? —______ ! Dad is writing his paper.