For a decade, that scientist has studied centenarians, looking for genes that contribute to longevity.
I am sorry I have no time at present to____________________ detail of our plan.
______ his brother, Mike is active and friendly.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
It is stated in the passage that____________________ .
There has been a great increase in retail sales,_____________________ ?
Standing on the tip of the cape,____________________ .
_______ has been a topic of continual geological research.
We all agree that she is____________________ student in our class.
__________ John Kennedy was elected president, he was the youngest American President ever.
The word "allocated" in the passage mostly means "______".