JAMB - English Language (2000 - No. 55)
Choose from the options opposite in meaning to the word underlined.
When the driver applied the brakes, they acted up.
failed
responded well
were sluggish
jammed
คำอธิบาย
The phrase "acted up" implies that the brakes malfunctioned or did not perform well. Therefore, the opposite would be that it "responded well."