It has been estimated that ________ one hundred thousand men participated in the gold rush of 1898.

A seventeen-year-old is not ________ to vote in an election.

As soon as ________ with an acid, salt, and sometimes water, is formed.

The Ford Theater where Lincoln was shot ________.

The skiers would rather________ through the mountains than go by bus.

He has received several scholarships ________

The doctor insisted that his patient ________

Legumes take nitrogen into their roots ________ the air.

So little ________ that he failed the examination.

The belief in life after death is prevalent in both primitive societies ________ advanced cultures.