She had lived to be very old and at last infirm.
A. strong
B. determined
C. fixed
D. feeble
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.…and they never understood the grim, unrelenting advance of the U.S. Cavalry.
A. irresistible
B. yielding
C. relentless
D. flexible
.In Palo Duro Canyon they abandoned their crucial stores to pillage and had nothing then but their lives.
A.looting
B. firing
C.protecting
D. killing
They wore great black hats and bright ample shirts that shook in the wind.
A. insufficient
B. large
C. angry
D. petty
The great billowing clouds that sail upon it are shadows that move upon the grain like water…
A. sway
B. twist
C. increase
D. howl