During the early nineteenth century, the Spanish missions in Alta, California ____ to be an integral part of the economy and productive capacity of the region.

• proved

• they proved

• they proved it

• proved it

Still other hurdles remain before ____ suitable for private cars.

• fuel cells

• become

• fuel cells become

• that fuel cells become

The daughters of Joseph LaFlesche were born into the generation of Omaha forced to abandon tribal traditions, ____ on the reservation, and to adapt to the white man's ways.

• they matured

• to mature

• maturing

• to maturity

Among the most revealing aspects of mining towns ____ their paucity of public open space.

• was

• were

• it was

• so

Factor analysis^(A) is used^(B) to discover how many^(C) abilities are involve^(D) in intelligence test performance.

• A

• B

• C

• D

One of the early^(A) orders of marine mammals, manatees have evolved^(B) more than fifty million^(C) years ago from^(D) land animals.

• A

• B

• C

• D

Dolphins and chimps are^(A) like^(B) in that^(C) they have been shown^(D) to have language skills.

• A

• B

• C

• D

In the appendix at the end^(A) of the chapter are^(B) the instructions to be used^(C) for the completion correct^(D) of the form.

• A

• B

• C

• D

Used^(A) sound that^(B) varies not only in time but also in space^(C), whales at close range may communicate with^(D) sonar-like "pictures".

• A

• B

• C

• D

The 1898 Trans-Mississippi International Exposition has^(A) the distinction of being^(B) the last major fair which held^(C) during^(D) the Victorian period.

• A

• B

• C

• D