13. On attaining maximum size, ---- by drawing itself out and dividing into two daughter amoebas, each receiving identical nuclear materials.

a. the reproduction of the amoeba
b. the amoeba, which reproduces
c. reproducing the amoeba
d. the amoeba reproduces

14. For the advertiser, one of the greatest appeals of radio is ---- an audience all day long.

a. that it has
b. that to have
c. to have it
d. having it

15. Charles Schulz’s comic strip, “Peanuts,” features children who make --- about life.  

a. funny, wise statements that
b. which funny, wise statements
c. statements are funny but wise
d. funny but wise statements

16. One of the major rivers of the western United States, ---- flows for some 1,500 miles from Colorado to northwestern Mexico.

a. it is the Colorado River
b. the Colorado River which
c. and the Colorado River
d. the Colorado River

17. In art, the tendency of gouache colors to lighten on drying makes ---- a wide range of pearly or pastel-like effects.

a. it is possible
b. possible
c. possible to be
d. it possible the

18. ...of the Stamp Act in 1765 provoked strong opposition among the American colonists.

a. The passage was
b. it was the passage
c. Before the passage
d. The passage   

19. in 1905 Juneau replaced Sitka … Alaska.

a. the capital was
b. as the capital of
c. was the capital of
d. the capital being

20. ...were first viewed through a telescope by Galileo.