1. --- principal types of acceleration: linear and angular.
(A) There are tow
(B) Two of them
(C) The two
(D) Two
2. East Liverpool, Ohio, ---the pottery capital of the United States.
(A) and called
(B) is called
(C) calling
(D) to call
3. True hibernation takes place only among ---animals.
(A) whose blood is warm
(B) blood warm
(C) warm-blooded
(D) they have warm blood
4. Like other women ---in the field of medicine, Sara Mayo found the beginning years difficult.
(A) who they pioneered
(B) they pioneered
(C) who pioneered
(D) pioneered
5. In his writing, John Crowe Ransom describes what ---the spiritual barrenness of society brought about by science and technology.
(A) he considers
(B) does he consider
(C) considers
(D) considers it
6. Green ---have the power to make food from substances found in the air and soil.
(A) only plants
(B) plants alone
(C) the only plants
(D) plants are alone
7. Children with parents whose guidance is firm, consistent, and rational are inclined ---high levels of self-confidence.
(A) possess
(B) have possessed
(C) to possess
(D) possessing