— What’s the matter with you? — After the long walk, my legs _______ and I couldn’t even take one more step.
#78217
A
gave out
B
wore out
C
ran out
D
tired out
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---Tom, keep your_____ on your studies. --- Sure, mum. I'll keep that in_____.
#84113
A
mind;mind
B
heart;head
C
brain; mind
D
heart;brain
The electricity ____, the light went out.  
#77100
A
cut off
B
having cut off
C
was cut off
D
had cut off