During the earthquake, a lot of buildings collapsed, which killed thousands of people.
______ his brother, Mike is active and friendly.
_______ has been a topic of continual geological research.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
The examination was not very difficult, but it was_____________________ long.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
Michael looked deeply hurt and surprised when_____________________ .
He_______________us but he was short of money at the time.
Regular exercise and good diet will bring______fitness and health.
I am sorry I have no time at present to____________________ detail of our plan.
__________ John Kennedy was elected president, he was the youngest American President ever.