6.The mistake will remain an indelible _____ on his memory.
A. stain
B. thing
C. issue
D. accident
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7.The wheel _____ through my frozen hand, and the car went right across the road.
A. slipped
B. sipped
C. dashed
D. disappeared
8.The cupboard was _____ with old fishing tackle.
A. stuffed
B. full
C. set
D. arranged
9.The decision depended on the _____ of a coin.
A. loss
B. lot
C. toss
D. sign
10. Teaching can be a tiring and _____ job.
A. meaningless
B. stressed
C. rewarded
D. stressful