3. In 1849 Walter Hunt, _______________ American inventor, patented a design that served as the basis for modern safety pins. a. an b. he was an c. being d. who was, as an
an
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11. _______________ cell in the body is far from a capillary. a. Not b. No c. Not only a d. Neither a
No
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28 identify errors
C
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10
12. Ralph Waldo Emersonâs belief ____________ the individual freedom of all people greatly influenced later American thinkers. a. as of b. on c. in d. as in
in
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29 identify errors
D
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20
7. The higher the content of carbon dioxide in the air, ________________ a. more heat it retains b. than it retains more heat c. it retains more heat d. the more heat it retains
d. the more heat it retains
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1. Snakes have an organ in a pit on their heads _____________ infrared rays. a. detects b. a detection of c. it detects d. that detects
that detects
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23 identify errors
C
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14. _____________ phobias do not involve loss of contact with reality, they may severely limit a personâs life. a. Although b. Despite c. That d. As