Because of his reservations about the issue, ____ refused to vote for it.

Bats avoid running into objects by ____ high-frequency sounds and listening for echoes.

It has been estimated that if we intend to stay above the starvation level, ____ the food supply.

To determine^(A) an object's force, the mass and^(B) speed of the^(C) object must be measure^(D).

The most common^(A) time for tornados^(B) to occur are^(C) in the afternoon or evening on a hot, humid^(D) spring day.

Automakers Nissan and Ford and several^(A) aerospace research facilities in Great Britain are working^(B) lately to apply active noise cancellation^(C) to entire^(D) cars and planes.

When a country in^(A) an early stage of development, investments^(B) in fixed^(C) capital are vital^(D).

John Chapman became famous^(A) in American folklore as "Johnny Appleseed" after he plants^(B) apple trees throughout^(C) the northeastern part of^(D) the United States.

Inasmuch^(A) he kept mostly^(B) to himself^(C), the author of The Treasure of the Sierra Madre was^(D) known as "the mysterious B. Treuen.