A.feltB.lookedC.seemedD.appeared
A. felt
B. looked
C. seemed
D. appeared
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A.sinceB.whenC.whatD.as
A. since
B. when
C. what
D. as
A.crackB.blankC.breakD.opening
A. crack
B. blank
C. break
D. opening
A.emptyB.quietC.stiffD.calm
A. empty
B. quiet
C. stiff
D. calm
A.workedB.gotC.cameD.made
A. worked
B. got
C. came
D. made