13.They weighted the new boat with rocks to keep it ____ completely in the water. ()
A. plunged
B. dipped
C. sunk
D. immersed
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12.We were given ___ dry bread and water for our evening meal.()
A. nothing
B. nothing other than
C. something than
D. anything than
11.I’m ____, so we’d better dine out. ()
A. a perfect chef
B. a qualified chef
C. not much of a chef
D. not much of chef
10.Never bother your teacher with such ____ matters.()
A. optional
B. important
C. necessary
D. petty
9.The narratives of American history, American culture is not theirs alone but that of their French classmates, too. “That” in the sentence refers to ____. ()
A. French classmate
B. American culture
C. narrative
D. American history