The two men looked so alike that it was impossible to _____between them.
Education in many countries is compulsory________the age of 16.
The boat was sailing north when a terrible storm_____________ .
Only one of our gifted students______to participate in the final competition.
The word "allocated" in the passage mostly means "______".
_______ has been a topic of continual geological research.
There has been a great increase in retail sales,_____________________ ?
He_______________us but he was short of money at the time.
We all agree that she is____________________ student in our class.
The packages___________________ so that it would be easier to carry them.
I am sorry I have no time at present to____________________ detail of our plan.