Direction: In the following questions, sentences are given with blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative out of the four as your answer.
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Turn the lights _______ before you go to bed.
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- on
- off
- out
- down
- on
Correct Option: B
both turn off and turn out can be used here, as they mean the same. But we cannot turn out when we talk about a tap/a radio.
turn on (Phr. V.) : to attack somebody suddenly and unexpectedly ; to depend on something ; to start the flow of electricity, gas, water, etc. by moving a switch, button, etc.
turn out (Phr. V.) : to stop the flow of electricity, gas, water, etc. by moving a switch, button,
etc.
turn down (Phr. V.) : to reducete noise, heat, etc. produced by a piece of equipment by moving its controls
Here, the most appropriate usage is turn off.
