"switch off" vs. "turn off "

[michaelo]

English Grammar Error, Intermediate level

ESL/EFL Test #20 "Singular vs. Plural Nouns", question 7

I'm very keen to cut down on the cost of electricity in this house and so please close off all the lights before you go to bed.

(a) cut down
(b) close off
(c) before

English Grammar Error, Intermediate level

ESL/EFL Test #20 "Singular vs. Plural Nouns", answer 7

I'm very keen to cut down on the cost of electricity in this house and so please turn off all the lights before you go to bed.

Correct entry: turn off
The error was: (b) close off

You have found the error but your entry is incorrect.
I'm very keen to cut down on the cost of electricity in this house and so please switch off all the lights before you go to bed.
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Why not switch off?

michaelo

[Alan]

Hi,

Switch off is fine also.

Alan
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English as a Second Language
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